https://forums.serebii.net/threads/10-ways-to-call-southwest-airlines-customer-service-a-full-comprehensive-guide.775455/
https://americanairhelpdesk.ladesk.com/220423-Ways-to-REach-American-Airlines-Customer-Service-Directly-via-Phone-Chat-and-Email-Step-by-Step-Guide
https://officialexpedianumber.ladesk.com/675756-Easily-Contact-Expedia-Customer-Support-by-Phone-Chat-or-Email--Get-Fast-Help
https://official-expedia-usa.ladesk.com/827169-5-Ways-To-Connect-with-Expedia-Airlines-Customer-Service-Phone-Email-and-Chat-Care-Options-Explained
https://expediaofficial.ladesk.com/301864-Ways-to-CaLL-Expedia-Customer-Service-Directly-via-Phone-Chat-and-Email-Step-by-Step-Guide
https://www.tripadvisor.com/ShowTopic-g28964-i75-k15298553-How_to_Contact_Expedia_Customer_care_Phone_Email_and_Live-Texas.html
https://americanairhelpdesk.ladesk.com/220423-Ways-to-REach-American-Airlines-Customer-Service-Directly-via-Phone-Chat-and-Email-Step-by-Step-Guide
https://official-expedia-usa.ladesk.com/607668-Ways-Call-with-Expedia-Airlines-Customer-Service-Number-Phone-Email-and-Chat-Care-Options-Explained
https://americanairhelpdesk.ladesk.com/661012-Ways-to-CaLL-UNited-Airlines-Customer-Service-Directly-via-Phone-Chat-and-Email-Step-by-Step-Guide
https://americanairhelpdesk.ladesk.com/944734-Ways-to-CaLL-Delta-Airlines-Customer-Service-Directly-via-Phone-Chat-and-Email-Step-by-Step-Guide
https://www.tripadvisor.com/ShowTopic-g28964-i75-k15298561-How_to_Contact_Expedia_Customer_care_Phone_1860_374_7569-Texas.html
https://travelexpediahub.ladesk.com/432104-Easily-Ways-to-Access-Expedia-Customer-Service--Phone-Chat-and-Email-for-Faster-Guide