Hello. My name is Benjamin Mitchell.
user
Hello, Benjamin Mitchell. How can I help you?
assistant
Our friends trip is postponed, so can you help me in changing the existing reservation?
user
Sure, please wait for a moment.
assistant
Ok.
user
Sorry, there is no reservation found by your name.
assistant
That's ok.
user
Thank you and have a nice day.
assistant
Thank you for your time.
user