Word forms: (regular plural) cancellation deadlines
( Hospitality (hotel) : Reservations and checking in and out )
You may cancel your reservation up until the cancellation deadline shown on your booking.
If you cancel your reservation after the cancellation deadline, you will have to pay for one night's stay.
If customers change their reservation before the hotel's cancellation deadline, no charge will apply.
Collins English Dictionary. Copyright © HarperCollins Publishers