That’s true, @cabinhost, the rep could have cancelled. But I have spoken to reps who swear up and down that they aren’t able to cancel. Luckily, in my situation, Air had cancelled a reservation for me (guest said in messaging she would cancel ‘when she got home from work’, leaving my calendar blocked for the next 6 days. Air cancelled it right then and there) so I pushed and they cancelled the reservation in question.
So perhaps the rep didn’t know, hadn’t experienced it, but at the end of the day the host was supported.