Your question is Ticket Purchase Flow for High Demand Event. 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 ticket purchase flow (Ticketmaster buy button) for a 20k-ticket Taylor Swift concert with strong consistency.
Asked in the system design stage. Focus on the purchase path, inventory reservation, payment coordination, retries, and failure handling. Explain where ML may safely assist, if at all, without weakening inventory correctness.