I've had minor issues with an airline ticket having my middle name and my passport not having it. Typically problems with self check-in (either online or the kiosk) and I end up going to the counter to have it corrected.
Oddly enough when we went to Tokyo I had no problem leaving Calgary, but when I went to check in for our return flight they had to issue me a new ticket so my passport & my ticket matched. ¯\_(ツ)_/¯
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