For example, say that you are flying with and airline company that claims that they closed the door on you for safety or other reasons. How can we verify that our seat on the flight has not been given to a standby passenger, and that this is not a lie? When they say that they tried to reschedule on another flight on the same day but failed, how can we verify that that is not a ure lie? When they say thay also looked at departures from other companies but that everything was full, how do we know it is the truth? When they claim that we cannot get our luggage back, or that the seats they are finally giving us are the last ones available on that flight, how do we know it is the truth?
When trust is gone, we need a way to make sure that the contract between company and customer is not breached by the side that has more power and a monopoly on information. How? Should air passengers unionize? Or is there some cryptographic procedure that would help verify the company's claims?