Who will bear the responsibility of "missing the plane"?

Is there any evidence to prove the oral agreement? This is an important criterion for judging right and wrong.

Tourists are responsible for negligence, but the travel agency should pay more compensation to consumers if it changes the conditions (cancels the whole escort) to shorten the trip without being told.

The five-day tour was changed to four and a half days. Full escort is a service that should be provided. Is there any compensation after the reduction?

Therefore, it can be claimed that the responsibility for air tickets is 50/50, and the travel agency will pay extra compensation for the loss of travel services 1000 yuan per person.