Hi.
user
Hello, how can I help you?
assistant
Could you please change my existing reservation due to postpone of my trip?
user
Sure, may I know your name?
assistant
My name is George Mitchell.
user
Please wait a moment.
assistant
Sure.
user
Sorry, no reservation found on your name.
assistant
Not a problem, thank you for checking.
user
Thank you for opting us.
assistant