Originally Posted by VegasGambler

So, then, what's the issue? Breach of contract is all about damages (eg https://en.wikipedia.org/wiki/Breach_of_contract)

I'd love to hear an airline explain how they suffer damages when a seat which has been paid for leaves empty (especially if they are made aware of it before take-off, so, for example, the flight is not delayed while waiting for the passenger)