Hello.
user
Hello, how may I serve you today?
assistant
Could you please change my existing reservation due to postpone of my trip?
user
Sure, may I know your name to check the reservation status?
assistant
My name is Raymond White.
user
Please wait for couple of minutes.
assistant
Sure.
user
Sorry, there is no reservation found on your name.
assistant
Not a problem, thank you for checking.
user
Thank you for choosing us.
assistant