Originally Posted by jsloan

If something fails, the phrase I'd use is that "Airline XYZ doesn't seem to have the correct ticket number. Can you please push the ticket through to their system again?" I'd also try calling the operating carrier and see If they'll agree to let you read the new numbers (one per passenger) to them. YMMV on whether or not they're willing / able to enter ticket numbers manually into their PNR, though. You can also try a conference call between the airlines, although if both have long hold times, that can be a challenge.