Hello. I'm Michael Brown.
user
Hello, how may I help you?
assistant
I had planned to visit my friend, but it was postponed.Can you change my recent reservation?
user
Ok Brown, just wait for a while.
assistant
Sure.
user
Sorry Brown, there is no reservation found with your name to change in our database.
assistant
That's Ok. Thank you for your help.
user
You are welcome.
assistant