Hello, I am Anna Baker.
user
Hello, how can I assist you today?
assistant
I want to change my existing reservation due to postpone of my interview. Can you please help in changing my reservation?
user
Sure, please wait for a moment.
assistant
Ok.
user
Sorry to say that, no reservation was found with your good name.
assistant
No problem, thank you.
user
Thank you for opting us.
assistant