United States
https://www.ielsm.com/forum/discusiones-generales/does-royal-jordanian-offer-refundable-tickets-r-j-instant-help-24-7
https://www.entmasterclass.com/forum/general-discussion/h-united-airlines-representative-r-r-name-and-flight-changex
https://www.entmasterclass.com/forum/general-discussion/____h-13