See this example, the guest has a reservation Nov 27 (Thu) to Nov 28 (Fri), is asking to add Wednesday (26th) to the booking, and Rezzy is saying that Wednesday the 29th (which is not, Wednesday is 26th, the 29th is Satuday) is not available, when it is (weirdly, both dates are available, the nights of the 26th and 29th).
