https://www.devex.com/people/does-delta-offer-24-hour-hold_on_services-2413431

https://www.tripadvisor.com/ShowTopic-g1-i10702-k15052869-Easy_Ways_to_Find_Air_Canada_Customer_Help_Line_Number-Air_Travel.html

https://tabellaesupport.microsoftcrmportals.com/forums/support-forum/2a8138ee-7bcd-ef11-a81b-6045bddebfc9

https://www.devex.com/people/ello-uys-does-atar-irways-have-a-cancellation-policy-2413425

https://www.tripadvisor.com/ShowTopic-g1-i10702-k15052867-Easy_Ways_to_Find_Air_Canada_Customer_Help_Line_Number-Air_Travel.html

https://www.devex.com/people/cancellation-policy-what-is-the-cancellation-policy-for-lufthansa-2413409

https://www.devex.com/people/accurate_advice-what-is-the-american-cancellation-fee-2413418

https://www.yelp.com/biz_photos/singapore-airlines-jamaica?select=qqW2qyotTL6VsSdBrykrBw&utm_campaign=www_photo_share_popup&utm_medium=copy_link&utm_source=(direct)

https://tinyurl.com/dn83uccn

https://www.devex.com/people/faqs-distruction-how-do-i-request-a-refund-from-expedia-o-t-a-2413383