Please be aware that once an owner has confirmed you as their chosen sitter, and you have in turn confirmed your acceptance of their invite, a firm agreement has been made and you (and the owner) have an obligation to fulfil this commitment.
As clearly outlined in our guidelines, any TrustedHousesitters member (either owner or sitter) known to have broken a firm agreement without good cause* will be excluded from future listings without refund.
In the event of an unavoidable cancellation a sitter must contact the owner without delay. As both parties will likely book travel arrangements once confirmation has been received, you should not confirm your acceptance of a sit unless you are 100% committed to the opportunity.
*e.g. serious illness, family bereavement.