Forgot to ask...Are LMU's offerred for flights where the originating segment is a Non-Air Canada? Reason I ask is if I can only do one upgrade on this trip, I would probably want to do it on the return leg (as I have to go back to work the next day). However, on the return, I'm flying Asiana out of SGN, then AC from ICN to YVR, on to YYC.