Hello, I am Margret Miller.
user
Hello. How can I aid you?
assistant
I would like to change an existing reservation as my plan to meet my boy friend got post pone. Can you help me with this?
user
Sure. Give me a minute.
assistant
Sure.
user
Thanks for your time. We didn't  found any reservation by this name.
assistant
Ok, not an issue. Thank you for information.
user
Thank you.
assistant