Just checking seat maps for certain flights coming up to find that ORD-SFO at 8:00am flight 809, a 3-cabin 777, has C,D at 0 for almost every day I checked from now up until Mar 28 (the latest day I checked). Infact on that day F,A is at 0 too. On the return from SFO-ORD flight 150 at 1:00pm again a 3-cabin 777 for dates checked through Apr4 (again the latest date I checked) 0 seats in C,D,A with a few F seats? Now I know UA didn't sell these seats-what's going on?