i don't think english is the OP's first language.

i was on an Airbus in fll a couple years ago. the computers would not come up. the flight crew, then a set of ground people kept rebooting the plane(what else you call it?). after over an hour, and a half a dozen electrical shutdowns and refires, they cancelled the flight and let us get on a different plane.

i was one happy camper. airbus 320's sort of need those computers to be able to fly safely.

when they dump the passengers out of the plane, and set up 2 or 3 gate agents to rebook 150 people, run to the front desk and rebook there or in the lounge if you have status. i was back in DC by the time some of those people were finally rebooked.