Hello.
user
Hi.
assistant
I'm Nancy Davis.
user
How can I help you?
assistant
I had planned to visit my friend, but it has been postponed.Can you change my recent reservation?
user
Sure.
assistant
Ok.
user
I am sorry  Nancy Davis I cannot find any reservation on your name.
assistant
Ok, that's not a problem. Thank you for your help.
user
Thank you.
assistant