Hi.
user
Hello, how may I be at your service today?
assistant
I need to change my existing reservation as my appointment with my doctor got postponed. Can you help me with it?
user
Sure, we are here to help you. Could you please provide your name to check your reservation status?
assistant
My name is Thomas Johnson.
user
Please wait for a while, I will check the reservation status and get back to you.
assistant
Sure.
user
Sorry we couldn't find any reservation against your name.
assistant
It's ok, thank you for the response.
user
Thank you for choosing us.
assistant