Hello, I am new to KVS and appreciate your patience. I have searched for a solution to this question with no luck. For UA, is there a way to see if an aircraft used for a particular flight has 2 or 3 cabins? Specifically, updgrade availability for some flights using 757 aircraft might be listed as NF1 NC0. One might think a one cabin updgrade from coach is not available. But if the aircraft only has a first class cabin, and not a business class cabin, an upgrade is available from coach to first (indicated by "NF1"). If the 757 does have first and business, then you're out of luck. So, when checking availability in this case the key is knowing how many cabins the 757 has. Can KVS show this? Thank you.