To change the name on your Expedia booking, you can contact their customer support at +1-(833)-(522)-(9940) or (833)-(444)-(7613) (OTA). They will guide you through the process and help with any necessary adjustments to your booking.
https://www.devex.com/people/expedia-name-change-can-i-change-my-name-on-expedia-2263213
