Davide Boizza This workflow corresponds to n8n.io template #6135 — we link there as the canonical source.
This workflow follows the Agent → Google Sheets recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"id": "qO5iIv005Wh8MNjr",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "AI-Powered Reservation Reminder Calls with Twilio",
"tags": [],
"nodes": [
{
"id": "7f2c26e5-a2da-44c5-8ec3-bc23a2893d14",
"name": "When clicking \u2018Execute workflow\u2019",
"type": "n8n-nodes-base.manualTrigger",
"position": [
176,
1088
],
"parameters": {},
"typeVersion": 1
},
{
"id": "cfdab910-984d-49bb-9835-03486d5fa4d9",
"name": "Schedule Trigger",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
176,
912
],
"parameters": {
"rule": {
"interval": [
{
"triggerAtHour": 11
}
]
}
},
"typeVersion": 1.2
},
{
"id": "2345492b-8fa2-4fcc-8756-33da030bc6a2",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
144,
464
],
"parameters": {
"width": 680,
"height": 224,
"content": "## STEP 1\n\nRegister to Twilio and buy a phone number\n- Set the [text-to-speach](https://console.twilio.com/us1/develop/voice/settings/text-to-speech) language\n- Set the [geo permissions](https://console.twilio.com/us1/develop/voice/settings/geo-permissions)\n- Set up the Twilio node\n- Set up the sender in the field \"From\""
},
"typeVersion": 1
},
{
"id": "c31a610e-5c11-43c1-ba93-aef36f4b9730",
"name": "Secretary Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
928,
992
],
"parameters": {
"text": "=Details booking appointment:\nName: {{ $json.NAME }}\nTime: {{ $json.TIME }}\nN. People: {{ $json['N. PEOPLE'] }}",
"options": {
"systemMessage": "=You are the secretary of the restaurant \"Bella Napoli\" and your task is to create a conversation for a phone call to remind a customer about their reservation today. You will be provided with the reservation name, time, and number of people.\n\nHere are the details of the reservation:\n<reservation>\nName: {{ $json.NAME }}\nTime: {{ $json.TIME }}\nN. People: {{ $json['N. PEOPLE'] }}\n</reservation>\n\nCreate a polite and friendly conversation for the phone call. The conversation should include:\n1. A greeting and introduction\n2. A reminder of the reservation details (name, time, number of people)\n\nOnly Write the message without any tags.\n\nHere's an example of how your output should be structured:\n\nGood morning, Mr. Paolo. I'm the secretary at Bella Napoli restaurant. I'm calling to remind you of your reservation for today at 8:00 PM for four people. Have a nice day!\n\nRemember to use the provided reservation details in your conversation. Create a natural and friendly message that a real restaurant secretary might have with a customer."
},
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 1.8
},
{
"id": "bacd0bad-93be-4643-b76d-a232372d8652",
"name": "Loop Over Items",
"type": "n8n-nodes-base.splitInBatches",
"position": [
640,
976
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "568a49f4-653f-45e1-8515-22742ac0f18a",
"name": "Wait",
"type": "n8n-nodes-base.wait",
"position": [
1424,
1200
],
"parameters": {
"unit": "minutes",
"amount": 2
},
"typeVersion": 1.1
},
{
"id": "f3b319f4-8c5e-4ef9-b633-bcefa9a1bb04",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
144,
720
],
"parameters": {
"width": 688,
"height": 128,
"content": "## STEP 2\n- Clone this [Google Sheet](https://docs.google.com/spreadsheets/d/1lQh-199bQe-HKwmVI_6cS-Xv1OiGo1B4-OpR6kbNg7E/edit?usp=sharing)\n- Remember that the Phone field must contain the international prefix without the \"+\" character."
},
"typeVersion": 1
},
{
"id": "c4a2fcfb-0875-4607-a874-0b34d4f24785",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
144,
256
],
"parameters": {
"color": 3,
"width": 672,
"content": "## AI-Powered Reservation Reminder Calls with Twilio\n\nThis workflow automates the process of calling customers to **remind them of their booking reservations** using AI-generated messages and a **Twilio** phone number. It can easily be adapted for other venues"
},
"typeVersion": 1
},
{
"id": "7ed94873-766a-43a3-82f4-882b3d482e83",
"name": "Grok 4",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenRouter",
"position": [
896,
1200
],
"parameters": {
"model": "x-ai/grok-4",
"options": {}
},
"credentials": {
"openRouterApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "2142042a-0d66-4053-8c6c-a6008b269e8d",
"name": "Get daily reservations",
"type": "n8n-nodes-base.googleSheets",
"position": [
432,
976
],
"parameters": {
"options": {},
"filtersUI": {
"values": [
{
"lookupColumn": "CALLED"
},
{
"lookupValue": "={{ $now.format('yyyy-LL-dd') }}",
"lookupColumn": "DATE"
}
]
},
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lQh-199bQe-HKwmVI_6cS-Xv1OiGo1B4-OpR6kbNg7E/edit#gid=0",
"cachedResultName": "Foglio1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1lQh-199bQe-HKwmVI_6cS-Xv1OiGo1B4-OpR6kbNg7E",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lQh-199bQe-HKwmVI_6cS-Xv1OiGo1B4-OpR6kbNg7E/edit?usp=drivesdk",
"cachedResultName": "Booking appointments"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 4.6
},
{
"id": "80d0ebf7-0e19-452b-ad25-993e77ced577",
"name": "Make a call",
"type": "n8n-nodes-base.twilio",
"position": [
1424,
992
],
"parameters": {
"to": "=+{{ $('Get daily reservations').item.json.PHONE }}",
"from": "+177526xxxxxx",
"twiml": true,
"message": "=<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<Response>\n <Say voice=\"alice\" language=\"it-IT\">\n {{ $json.output }}\n </Say>\n</Response>\n",
"options": {},
"resource": "call"
},
"credentials": {
"twilioApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "fadf15c5-c652-4ec2-9e21-0a61f4046532",
"name": "Update reservation",
"type": "n8n-nodes-base.googleSheets",
"position": [
1104,
1200
],
"parameters": {
"columns": {
"value": {
"CALLED": "x",
"row_number": "={{ $('Get daily reservations').item.json.row_number }}"
},
"schema": [
{
"id": "DATE",
"type": "string",
"display": true,
"required": false,
"displayName": "DATE",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "TIME",
"type": "string",
"display": true,
"required": false,
"displayName": "TIME",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "NAME",
"type": "string",
"display": true,
"required": false,
"displayName": "NAME",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "N. PEOPLE",
"type": "string",
"display": true,
"required": false,
"displayName": "N. PEOPLE",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "PHONE",
"type": "string",
"display": true,
"required": false,
"displayName": "PHONE",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "CALLED",
"type": "string",
"display": true,
"required": false,
"displayName": "CALLED",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "row_number",
"type": "number",
"display": true,
"removed": false,
"readOnly": true,
"required": false,
"displayName": "row_number",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [
"row_number"
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "update",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lQh-199bQe-HKwmVI_6cS-Xv1OiGo1B4-OpR6kbNg7E/edit#gid=0",
"cachedResultName": "Foglio1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1lQh-199bQe-HKwmVI_6cS-Xv1OiGo1B4-OpR6kbNg7E",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1lQh-199bQe-HKwmVI_6cS-Xv1OiGo1B4-OpR6kbNg7E/edit?usp=drivesdk",
"cachedResultName": "Booking appointments"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 4.6
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "dda55711-3ade-40ea-bddf-618aa56f6650",
"connections": {
"Wait": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"Grok 4": {
"ai_languageModel": [
[
{
"node": "Secretary Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Make a call": {
"main": [
[
{
"node": "Update reservation",
"type": "main",
"index": 0
}
]
]
},
"Loop Over Items": {
"main": [
[],
[
{
"node": "Secretary Agent",
"type": "main",
"index": 0
}
]
]
},
"Secretary Agent": {
"main": [
[
{
"node": "Make a call",
"type": "main",
"index": 0
}
]
]
},
"Schedule Trigger": {
"main": [
[
{
"node": "Get daily reservations",
"type": "main",
"index": 0
}
]
]
},
"Update reservation": {
"main": [
[
{
"node": "Wait",
"type": "main",
"index": 0
}
]
]
},
"Get daily reservations": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"When clicking \u2018Execute workflow\u2019": {
"main": [
[
{
"node": "Get daily reservations",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
googleSheetsOAuth2ApiopenRouterApitwilioApi
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
About this workflow
🤖📞 This workflow automates the process of calling customers to remind them of their booking reservations using AI-generated messages and a Twilio phone number. It can easily be adapted for other venues.
Source: https://n8n.io/workflows/6135/ — original creator credit. Request a take-down →
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