https://ir.library.oregonstate.edu/branding/1544bz481/banner/how-do-i-book-a-united-airlines-flight-by-phone.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/can-i-call-united-to-book-a-new-flight.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/what-number-do-i-call-to-make-a-new-booking-with-united.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/how-can-i-change-my-united-airlines-flight-date.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/can-i-call-united-to-change-my-booking.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/what-is-the-phone-number-to-change-a-united-flight.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/how-do-i-cancel-a-united-airlines-flight-by-phone.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/can-i-get-a-refund-if-i-cancel-my-united-flight.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/what-number-do-i-call-to-cancel-a-united-ticket.pdf
https://ir.library.oregonstate.edu/branding/1544bz481/banner/how-do-i-check-my-united-airlines-reservation-by-phone.pdf