@Natalia96
Here's a past forum thread on a similar aspect - it also has a post with some important links incl. the ramifications of host cancellation.
Guest no ID and cancellation
With cancellation it's always advised to do so with help of Airbnb helpdesk!
They've said so themselves when I talked to them.
In above thread find the link for newbie hosts that on incl. one on how to contact Airbnb and speed dial it for yourself on your phone, and bookmark the post for future reference!