Bonjour everybody. A client bought me a Z fare on the A380 SFO-CDG. I'd rather take the 777 flight as I believe it has new seats and cabin. What should I expect if I try to change the ticket? A ticket change fee or big fare difference lots or other costs too? I don't have the record locator yet, and can't seem to find the record, so thinking in advance. The flight is end of May..... Thanks for any thoughts....