Hello.
user
Hello, how may I assist you today?
assistant
I am Virginia Evans. I want to change my existing reservation due to postpone of my client meeting, so please change my existing reservation.
user
Please wait for a while, let me check and revert to you.
assistant
Sure.
user
There is no reservation found with your given name.
assistant
Ok, no problem.
user
Thank you for choosing us.
assistant
Thank you.
user