Originally Posted by
langleyoaker
CX doesn't have a middle name field in their reservation system, so even if you have your middle name on your AA profile it won't show up on the CX reservation. Instead CX has a given name field which is used for both first and middle names. If you ask AA to put both your first and middle names in the first name field, your middle name will show up on the CX reservation. I have traveled on CX without my middle name on the reservation, however I could not OLCI as I got an error that the name on the reservation didn't match my passport.
And I want to say Iberia has no middle name spot but does have an optional spot for a secondary surname. The typical ticketing system for a specific airline probably goes back to the 1970s and reflects naming conventions of the typical passenger they had at that time. Adding additional name fields to reflect a more diverse passenger base during IT upgrades would cost an airline money without any real benefit to them or passengers, so best to just train GAs and call centers to accept certain name formats as acceptable, especially since name components can get squished together in all kinds of different ways as a ticket issued elsewhere is electronically sent to the operating carrier of the flight