I have no idea how any legal system can see overbooking and not immediately classify it as fraud. A ticket is a binding legal contract, yes? Saying that a service will be provided at a specific time? So if you intentionally sell tickets and you know for a fact you can’t honour all of them simultaneously, how are you not distributing fraudulent contracts, which is illegal?

“Hurry call the cops to beat this asian doctor for not giving up his seat!”