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System Design questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master system design interviews.

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This is a medium difficulty System Design question, commonly asked during Onsite rounds at Microsoft.

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This question is commonly asked for Software Engineer candidates at Microsoft during technical interviews.

Design an Event Booking System | Microsoft Interview Question

Design an Event Booking System

Last updated: Apr 17, 2026

Quick Overview

This question evaluates system architecture, distributed systems, data modeling, concurrency control for seat inventory, transactional integrity for bookings and payments, and integration with external APIs and observability tools.

Microsoft

Feb 22, 2026, 12:00 AM

Software Engineer

Onsite

System Design

Design a high-level event booking system for concerts, movies, or sports events. The system should allow organizers to create events and publish seat inventory, and allow users to search for events, view availability, reserve seats, pay, and receive a booking confirmation.

Discuss:

Functional and non-functional requirements
External APIs
Core services and data flow
Database design
Seat inventory modeling
Concurrency control to prevent double booking
Payment, cancellation, and refund flows
Scaling, reliability, and observability

Solution

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