Subject: Authorization for Hotel Check-In
I, hereby, authorize my guest [Name] to check-in into the hotel room allotted to me on my behalf on [Date]. Please find attached herewith my identity proof as well as the identity proof of my guest for verification.
Kindly acknowledge the details below and mention them in your records for a smooth check-in of my guest.
Please feel free to contact me on [Email/contact number] in case of any query concerning this letter.