Automate airlines customer support with GPT-4 and question classification

by Oneclick AI Squad ✓ · 345 views · created 2025-10-31 · Support Chatbot, AI Chatbot

What this workflow does

This workflow has 13 nodes and runs when an HTTP POST request hits its webhook URL. It uses only n8n's built-in nodes. It also calls api.openai.com over HTTP.

How it runs

Trigger: When an HTTP POST request hits its webhook URL.

1. Extract & Clean Question (Code): runs custom JavaScript code
2. Classify Question Category (HTTP Request): calls api.openai.com
3. Parse Category Result (Code): runs custom JavaScript code
4. Fetch Knowledge Base Context (Code): runs custom JavaScript code
5. Generate AI Answer (HTTP Request): calls api.openai.com
6. Format Final Response (Code): runs custom JavaScript code
7. Check User Satisfaction (If): checks a condition and branches into true / false
8. Log Satisfied User (Code): runs custom JavaScript code
9. Offer Human Support (Code): runs custom JavaScript code
10. Merge: merges the data from its input branches

…plus 2 more steps. See the full node list below.

HTTP calls to: api.openai.com

Before you upgrade to n8n 3.0

Nodes used (6)

• Webhookn8n-nodes-base.webhook
• Coden8n-nodes-base.code
• HTTP Requestn8n-nodes-base.httpRequest
• Ifn8n-nodes-base.if
• Mergen8n-nodes-base.merge
• Respond to Webhookn8n-nodes-base.respondToWebhook

From the author

This n8n workflow automates airline customer support by classifying travel-related questions, fetching relevant information, generating AI answers, and delivering structured responses to users. It ensures accurate travel information delivery, tracks user…

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