https://ir.library.oregonstate.edu/branding/1544bz481/banner/can-i-confirm-my-delta-reservation-with-a-phone-call.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/what-is-the-delta-airlines-phone-number-for-reservations.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/can-i-confirm-my-american-reservation-with-a-phone-call.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/what-is-the-american-airlines-phone-number-for-reservations.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/can-i-confirm-my-united-reservation-with-a-phone-call.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/what-is-the-united-airlines-phone-number-for-reservations.pdf