Real Estate Lead Qualification Chatbot with Gpt-4o-mini

The workflow JSON

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{
  "name": "Website ChatBot",
  "nodes": [
    {
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "position": [
        60,
        20
      ],
      "parameters": {
        "path": "chatbot-webhook",
        "options": {},
        "httpMethod": "POST",
        "responseMode": "responseNode"
      },
      "typeVersion": 1
    },
    {
      "name": "Set User Message",
      "type": "n8n-nodes-base.set",
      "position": [
        320,
        20
      ],
      "parameters": {
        "values": {
          "string": [
            {
              "name": "user_message",
              "value": "={{ $json.body.message }}"
            }
          ]
        },
        "options": {}
      },
      "typeVersion": 2
    },
    {
      "name": "AI Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        560,
        20
      ],
      "parameters": {
        "text": "={{$json[\"user_message\"]}}",
        "options": {
          "systemMessage": "You are Khusboo, a friendly real estate pre-sales agent for Alcove New Kolkata Sangam. Your goal is to qualify leads and gently guide them toward a site visit. Use AIDA, BANT, SPIN, and PAS frameworks. Respond in Hinglish, be personal, share videos confidently, and never disclose price unless asked. Always aim to build trust and invite for a visit."
        },
        "promptType": "define"
      },
      "typeVersion": 2
    },
    {
      "name": "Respond to Webhook",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        900,
        80
      ],
      "parameters": {
        "respondWith": "json",
        "responseBody": "={\n  \"Respond Immediately\": \"{{ $json.output.replaceAll('\\n', '\\\\n').replaceAll('\\\"', '\\\\\\\"') }}\"\n}"
      },
      "typeVersion": 1
    },
    {
      "name": "OpenAI Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        560,
        280
      ],
      "parameters": {
        "model": {
          "mode": "list",
          "value": "gpt-4o-mini"
        },
        "options": {}
      },
      "typeVersion": 1.2
    },
    {
      "name": "Simple Memory",
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "position": [
        680,
        240
      ],
      "parameters": {
        "sessionKey": "==memory_{{ $json.body.session_id || 'default' }}",
        "sessionIdType": "customKey",
        "contextWindowLength": 20
      },
      "typeVersion": 1.3
    }
  ],
  "active": true,
  "settings": {
    "executionOrder": "v1"
  },
  "connections": {
    "Webhook": {
      "main": [
        [
          {
            "node": "Set User Message",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "AI Agent": {
      "main": [
        [
          {
            "node": "Respond to Webhook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Simple Memory": {
      "ai_memory": [
        [
          {
            "node": "AI Agent",
            "type": "ai_memory",
            "index": 0
          }
        ]
      ]
    },
    "Set User Message": {
      "main": [
        [
          {
            "node": "AI Agent",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "AI Agent",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    }
  }
}

About this workflow

This guidebook provides a comprehensive walkthrough of the Website ChatBot developed using n8n and OpenAI. The chatbot is designed to qualify real estate leads and encourage site visits for the Alcove New Kolkata Sangam project through personalized, intelligent conversations.

Source: https://n8n.io/workflows/6162/ — original creator credit. Request a take-down →

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