Hello, I am Thomas Baker.
user
Hello, how can I assist you today?
assistant
Due to health issues, I want to change my existing reservation.
user
Sure. Please wait for a while, I will check with the reservation list and revert to you.
assistant
Sure.
user
Thank you for your patience, we did not find any reservation on your name.
assistant
No problem, thank you for your service.
user
Thank you for choosing us.
assistant