Your question is Room Booking System Design. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Design a Room Booking System
Asked in the Round 1 - LLD stage. Focus on class structure, relationships, and flow. Explain how users, rooms, reservations, and availability interact, including how the system prevents conflicting bookings and supports cancellation.