An intelligent travel agent system that helps users find flights and hotels, and automatically sends detailed travel options via email. The system leverages LangChain, OpenAI's GPT-4, and SendGrid for a seamless travel planning experience.

Overview

This system processes travel requests by:

• Understanding user travel requirements
• Finding suitable flights using flight search tools
• Locating appropriate hotels based on criteria
• Generating detailed HTML emails with travel options
• Automatically sending formatted emails through SendGrid

Features

• Smart Travel Search: AI-powered search for flights and hotels
• Multi-Tool Integration: Combines flight and hotel search capabilities
• HTML Email Generation: Creates beautifully formatted travel option emails
• Automated Communication: SendGrid integration for reliable email delivery
• State Management: Uses LangGraph for maintaining conversation state
• Visual Output: Includes airline and hotel logos in email content
• Price Transparency: Clearly displays flight and hotel prices with currency

Tech Stack

• Core Framework: Python 3.x
• AI/ML: OpenAI GPT-4LangChainLangGraph
• OpenAI GPT-4
• LangChain
• LangGraph
• Email Service: SendGrid
• Key Libraries: langchain-openailanggraphpython-dotenvsendgrid
• langchain-openai
• langgraph
• python-dotenv
• sendgrid

Prerequisites

• Python 3.x installed
• OpenAI API access
• SendGrid API access
• Environment variables configured

Github Project

You can find my code here