When you invite an Angel for a fixed booking, they can either accept or decline the booking. If they accept de booking, they commit to all dates listed in the booking. Sometimes an Angel would really love to babysit, but is unavailable on some of the dates. In the booking, they can then tick the days they can and would like to babysit. The Babysitting angel can thus make a counter offer, which you can then accept or decline. This way, you will be ensured a couple of fixed babysitting services with the same babysitter. Once the counter offer has been accepted, you will be able to chat with the Angel.