Originally Posted by vernonc

Ok, here is an example. I have a SFO-YYZ red eye flight departing at 10.40pm. I am quite sure my meetings for the week will end early so now I want to change to the 4.40pm flight. OLCI will only be available based on my original flight - or am I missing something ? So I got to stay up to 10.40pm previous night to do a OLCI and change to earlier flight assuming it allows me too ? I would also want to snag a decent seat in Y so I do not want to wait for airport checkin.
And re the concierge question, this is a central email and phone line so should not be too difficult to queue it in a task list. Anyway, whatever.
I do not normally change flights so pardon the ignorant questions from a SE.