help

Hello!

Since this is only a Partner Community contact booking.com directly through your Extranet inbox tab or call your local BDC office.

Wish you well.

hi Holidays Black Diamond

all you can do is :

1. message the guest first  in the reservation details page then click Request To cancel, option 2.
2. Try to offer alternative dates .etc.  
3. Guest receives email to confirm.

This is the best method and outcome, otherwise BdC will charge you relocation invoice

Kind Regards.