I am approaching my 180 day mark for our post Thanksgiving trip. I am looking at various restaurants where booking is currently open (11/19/18 and earlier). There seems to be a large number of restaurants with no availability whatsoever. I could see this at CRT or BOG but when we went in early March there were plenty of slots available at most restaurants though maybe not the prime ones? I can't imagine Sci Fi Dine in is booked completely in early November? Any ideas?