https://www.thegearpage.net/board/index.php?threads/20-ways-to-speak-to-someone-at-delta-tm-airlines-r-a-complete-guide.2673361/

https://www.thegearpage.net/board/index.php?threads/20-ways-to-speak-to-someone-at-delta-tm-airlines-r-a-complete-guide.2673361/