@BonnyinBrighton That’s unfortunately how the THS platform kind of suggests it to work 
On the HO front page and on the dashboard there’s a button “Find a sitter”, which takes you to the list of sitters. Then there are options to filter the selection of sitters by date, location etc.
So, I totally understand why a new HO would think that’s how it works, and they get to search sitters available on certain dates and location.