[pigbearpig]

C'mon, there is a huge difference between an airline selling a seat they don't have and not having it due to an equipment issue.

[danaris]

Or, to look at it from another perspective:

The airline sold you something that they can't deliver because they refuse to keep extra planes around. They refuse to keep extra planes around because that would eat into profits, and would mean their execs wouldn't be able to buy their third gold-plated yachts.