So don't accept them.
Message the guest that you are sorry but since you can't get a different guest to book at last minute she will have to keep her reservation even if she doesn't use all the days, and book more days for another reservation if she wants.
This may make her cancel completely.
If your Guest tells AirBnb
"My Host, she wants to cancel Me!"
AirBnb will email you.
They'll ask you if
This tale is true.
What should you do?
You should decline!
The reservation is quite fine!
Just tell them no.
If she wants out
Then she may go but there's no doubt
The Guest should have to pay the price.
You're quite the Host, but not THAT nice.