I was just able to get a room the night of the 10th and 11th but not the 12th at the host hotel so had to get one at the Hampton Inn which is about 1 mile away for the Friday night.
^^^ "nothing for the 12th" = Exactly what the Double-Tree told me as well.
The lady on the phone was
very nice, but said no rooms (within or not of the "block") for Friday.
Breakfast included at the Hampton tho