I was going to mention this to the person with the donated rooms looking for a booking program. But you need to pay the % as does the guest. I am sure there is some way to work it, but being pastoral means excluding others, so if you put yourself out there on line you need to allow anyone to stay with you are be sued. If she is reading this, she may wish to stick to index cards.
If you were in a city location, this would be a good option.