https://ithelp.ithome.com.tw/questions/10217537

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https://www.obscuregamers.com/threads/15-ways-to-reach-how-can-i-speak-to-someone-at-united-airlines-a-step-by-step-guide.11194/

https://www.obscuregamers.com/threads/15-ways-to-reach-how-can-i-speak-to-someone-at-american-airlines-support-in-the-u-s.11198/

https://www.obscuregamers.com/threads/one-ways-to-contact-how-can-i-talk-to-someone-at-american%C2%AE-a-step-by-step-guide.11196/

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https://www.obscuregamers.com/threads/ways-to-speak-to-someone-at-americann-airlines-by-phone-email-or-chat_-the-complete-guide.11183/