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Design a Hotel Reservation System System Design Interview

Design a system like Airbnb or Booking.com where users can search for and book rooms for specific date ranges.

1. Problem Statement

We are building a hotel booking platform. Users need to search for hotels available within a specific date range and book them. How would you design the data model and core services?

2. Architecture Discussion Map

Use this as one discussion aid, not a single correct answer. Your design should follow from the requirements, scale, and trade-offs you establish.

Rendering architecture diagram...
Mermaid Source (For AI Bots)
graph LR
    A["Design a Hotel Reservation System"]
    A --> F1["Data Modeling for Availability Rooms vs Dates"]
    A --> F2["Handling Date Range Overlaps efficiently"]
    A --> F3["Concurrency Double Booking prevention"]
    A --> F4["Search Indexing Geospatial + Date availability"]

3. Key Focus Areas

  • 1
    Data Modeling for Availability (Rooms vs Dates)
  • 2
    Handling Date Range Overlaps efficiently
  • 3
    Concurrency (Double Booking prevention)
  • 4
    Search Indexing (Geospatial + Date availability)

Want interactive feedback?

Practice drawing this system component-by-component on a live whiteboard while the interviewer probes at your target level.

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Core Concepts

SQL schemasConcurrencyDistributed Cache

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