Absolutely, Expedia provides a 24-hour cancellation policy. If you need to cancel your flight, you can do so without a fee within 24 hours after your booking. For your convenience, cancellations can be made either online or by contacting their support at 1-855-526-0187.
https://twor.microsoftcrmportals.com/forums/support-forum/fcf256f4-5202-ef11-a73d-6045bd3fd1cb
read more..