Hi.
user
Hello, how can I help you today?
assistant
Could you please change my existing reservation due to postpone of my exams?
user
Sure, may I know your good name?
assistant
My name is Nancy Adams.
user
Please wait for a moment.
assistant
Sure.
user
Sorry to say that, no reservation was found with your good name.
assistant
Not a problem, thank you for checking.
user
Thank you for reaching us.
assistant