Your question is Parking Lot 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).
Low-level design for a parking lot management system (plus message queues, Spring vs Spring Boot)
Asked in the LLD round stage. Explain the core domain model, allocation and release workflows, concurrency handling, and how message queues and Spring or Spring Boot would fit into the implementation.