There are so many mistakes you can make when booking flights. You could book for the wrong time. Or the wrong date. Or the wrong destination.
You could type too quickly because you’re just really excited about escaping your everyday routine for a little while and enter your surname as “Clrak” instead of “Clark” on your ticket and then spend two hours on hold with the airline trying to fix the issue caused by a few fat, hyperactive fingers.
Point being, more often than not, booking errors do not fall in the traveller’s favour.
Unless, of course, you are Reddit user shadybaby22, who found herself travelling on an ENTIRELY EMPTY PLANE when she was given a ticket for a flight meant for airline crew only.