Rooms, Boards and Rates
When you insert a rate you must insert the number of available rooms too.
if you insert 1 room for a rate in a range of dates and then you book that room, the next user will see that the room has been booked and is not available
If you want to hide boards, this option is not yet available, anyway as told before, if you set the number of rooms to 0 for a board kind, then the user will cannot reserve that room with that board kind.
You can see the calendar clicking in the icon at the left of the rate in the second step of the booking.
Also, when a room isn't available, the user can view why the room is not available, no availability for that rate, number of guests not sufficient, etc