Originally Posted by
Lori_Q
Right - Agents don't always spot it, which is why the "personal touch" (telling the phone/ticketing/gate agent to look for it explicitly) is always the best policy.
It's annoying to deal with multiple PNRs, but sometimes it can help, particularly if you have to change your schedule, or if you're waitlisting for a different flight or class of service on multiple award tickets. For awards, you can grab what's available, then use additional PNRs to waitlist for additional capacity.
On award tickets, absolutely, several advantages. On paid tickets, it can be annoying if the two of us are waitlisted for Y-NC upgrades, mine clears, but her's doesn't, and they have already given away my 21J seat, leaving her in 21H, since the cross reference was missed.