https://intercom.help/eraaaaaa/en/articles/10912462-ultimate-guide-united-airlines-name-change-essentials-what-every-traveler-should-know
https://pressbooks.pub/correctionname/chapter/new-methods-united-airlines-name-change-ticket-name-change/
https://intercom.help/travelnamechange/en/articles/10781657-making-way-for-name-changes-on-united-airlines-tickets
http://pressbooks.pub/travellingguide/chapter/name-change-required-on-united-ticket-quick-guide-to-name-update/