Hello.
user
Hello, how can I help you today?
assistant
I am Stephen Thompson. I want to change my existing reservation due to postpone of my interview, can you help me in change reservation?
user
Sure, please wait for a moment.
assistant
Ok.
user
Sorry to say that, no reservation was found with your good name.
assistant
Ok, no problem. Thank you.
user
Thank you for reaching us.
assistant