Here's another question for the pros out there. I just bought a ticket SFO-EWR-LGW-EWR-SFO on CO and just realized that I may not be able to fly the SFO-EWR segment in 10 days (mainly since I am still in EWR). I will call the airline to try to change the originating flight to EWR-LGW but I am sure that they will want to change me some change fee. I was wondering...what happens if I call CO up and say that I won't be using the SFO-EWR segment. Will they keep the rest of my record in place? Thanks...