Hello Andrea Cook,
Good day. Thank you for posting in Microsoft Community.
Regarding your query on customizing Microsoft Bookings embedded bookings page, please understand that this query is outside of our support boundaries.
For you to be assisted properly, please reach out to Microsoft Bookings community by visiting this website Microsoft Bookings - Microsoft Community Hub. I am sure that our experts from that team can address your query effectively and accurately.
Thank you for your cooperation and understanding. Please do not hesitate to post your queries to Microsoft Community and we will always do our best to assist you!
Sincerely,
Ashraf.