https://official-southwestairlines-helpcenters.pages.dev/en/us/help/10-ways-to-talk-to-someone-at-southwest-airlines-via-phone-email-or-chat-options-step-by-step-guide/ https://official-american-airlines-helpcenters.pages.dev/en/us/help/ten-ways-to-talk-to-someone-at-american-airlines-via-phone-email-or-chat-options-a-step-by-step-guide/ https://official-american-airlines-helpcenters.pages.dev/en/us/help/10-ways-to-speak-to-someone-at-american-airlines-via-phone-email-or-chat-options-a-step-by-step-guide/ https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5304302