Hello.
user
Hello. How can I aid you?
assistant
I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Can you please help me in changing my reservation?
user
Sure, I can help you. May I know your name?
assistant
Myself Katherine Baker.
user
Give me a minute.
assistant
Ok.
user
 Sorry, we couldn't find a reservation on your name to change.
assistant
It's ok, thank you.
user
Thank you for choosing us.
assistant