Originally Posted by
mgcsinc
Nonetheless, if attempted at the airport in this case, I put the likelihood of it being done as a courtesy at pretty good.
A change of origin is going to require the ticket to be re-issued, which almost certainly can't be done by someone at the airport. Thus they are going to have to make a call to have it done, and without a good reason (eg, waiver) I simply can't see happening...