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

Guidebook: How the Website ChatBot Template Works

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Chapter 1: Introduction & Objectives

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.

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Chapter 2: Tools Required

1. n8n Workflow Automation Tool

An open-source workflow builder to automate data flows between services.

2. OpenAI Account with GPT-4o-mini Access

For generating AI-based chatbot responses.

3. Web Chat Widget

Frontend integration that sends messages via webhook to the chatbot.

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Chapter 3: Workflow Breakdown

Step 1: Webhook

• Receives POST requests from the chat widget.
• Endpoint: /webhook/chatbot-webhook

Step 2: Set User Message

• Extracts message from the JSON body.
• Stores it as user_message.

Step 3: Memory Setup

• Uses session ID to track conversation across messages.

Step 4: OpenAI Chat Model

• GPT-4o-mini processes queries using the defined agent prompt.

Step 5: AI Agent (Khusboo)

• Persona of a pre-sales agent.
• Uses AIDA + BANT + SPIN + PAS frameworks.
• Shares videos, responds in Hinglish, schedules site visits.

Step 6: Respond to Webhook

• Formats the chatbot's reply into a JSON response.

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Chapter 4: Strategy & Psychology Behind Responses

Framework

Purpose

AIDA

Capture attention, interest, desire, action

BANT

Qualify Budget, Authority, Need, Timing

SPIN

Understand user's Situation, Problems, Implications

PAS

Tackle objections using Problem, Agitation, Solution

The chatbot aims to qualify leads and gently move them toward booking a site visit without pushing or over-informing.

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Chapter 5: Setup Instructions

A. n8n Workflow Setup

1. Import the JSON workflow.
2. Ensure OpenAI credentials are set up.
3. Enable webhook at /webhook/chatbot-webhook.

B. Frontend Widget Integration

• Send message as POST to the webhook with structure:

{
  "message": "Looking for 2 BHK",
  "session_id": "user123"
}

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Chapter 6: Testing & Troubleshooting

Test via Postman

• Send sample request to verify AI response.

Common Issues

Issue

Fix

No response

Check webhook URL or credentials

Repeated replies

Ensure memory node is active

Wrong language

Check system message language rules

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Chapter 7: Sample Conversations

User: Hi, I’m looking for a home near the Ganga.

Bot: Namaste! Main Khusboo hoon, Alcove New Kolkata Sangam se. Aapka naam kya hai?

User: Rajat.

Bot: Great Rajat! Kya aap apne family ke saath shift hone ka plan kar rahe ho?

... (continues using frameworks)

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Chapter 8: FAQs & Maintenance Tips

Q: Can I update the AI agent persona?
A: Yes, by modifying the system message inside the AI Agent node.

Q: How do I share new videos or links?
A: Add them in the sharingVideos or UserRequests section in the system message.

Q: How to scale this for multiple projects?
A: Duplicate the workflow and update the aboutProject and links accordingly.

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End of Guidebook.