Hello. We have a CX reservation for next week, which we bought online through CX. I just realized that we were assigned seats 35B and 35C on a 744. I assume this is a middle and an aisle.

Is there a way to change these seats online? I don't know which site to use and we don't have cybertravelers account numbers.

Sorry for the dumb question... this is the first time we are flying CX.

-ks