I interviewed with an airline in the past few years for a project involving migrating its reservations and management systems (interesting tidbit: both maintenance and reservations were tied to the same underlying system). And integration with SABRE was very much a part of the job req.

I passed largely as it seemed that there were some significant organizational issues and wrestling with 60 year old computer systems stopped being my definition of fun a while ago. There were some glitches in the rollout but they got things running by and by.