It would be good to be able to mark days as special occasions such as Mother’s Day, St. Patrick’s day etc.

On days like this booking rules might differ from what would normally be allowed. Being able to make note of these occasions at the top of the page or as a pop up if someone is attempting to make a reservation on that occasion would be very helpful.

Yes I have just asked this question too so assume it is not possible.  This would be very helpful as staff forget when taking bookings that it maybe Mother's Day or another occasion where things maybe different.