Clicking on "Send Booking request" does not mean you have to commit to anything. This button is simply used to send your request to the owner. When you click on "Send my booking request", a quote is made up. If it suits you, you can then send your request to the owner.
This action is therefore totally free and non-binding!
When you send a booking request, we send this request to the owner along with your contact details, so that they can possibly contact you and answer all your questions. At this point in the process, you are still not committing.
The step that is binding, is when you make a payment after the owner has accepted your request.