App

• A full-stack AI-powered RAG-based app represented as a chat bot that lets the user plan their travel.
• Users can get travel recommendations and check flight fares without leaving current UI
• Unlike traditional apps where the user will have to click and fill-in multiple fields to provide their inputs, in this app, they can do all these things with 0 clicks and all by just chatting
• This app is ai-powered in every front (from understanding user inputs to using search apis to using multiple ai agents)

Requirements:

1. This is a near-real time* travel companion app
2. Users will "chat" with the app as if they're talking to a person
3. Users may to request for travel destination depending on their preference.
   • Users may have special occasions like summer vacation, wedding anniversary, birthday etc
   • The App will then consider user's preferences, special occasions, geo-political situations, weather situations
   • Finally, app will recommend travel destinations
4. Next, users may ask "I want to know flights available between delhi and nyc on october 28th 2025"
5. The App launches a web search using Perplexity's search api.
   • Get the top N results (say, N <= 8)
   • shows them in the results UI (say, in the right pane)
   • provides the summary of the result as audio also (openai's audio)

• near-real time: as fresh as data available at Perplexity's search provider indexes

Tech:

• Backend: Flask (Python)
• Frontend: React (with vite and Typescript with bun)
• LLM Models:
  • Reasoning (gpt-5-mini)
  • Intent + Summarization: gpt-4o-mini
  • Tools calling
• AI Agents
• RAG (Retrieval Augmented Generation)
• Search API: Perplexity Search
• Prompt Engineering
• Vibe coding

Architecture: