Hello. I am Robert Smith.
user
Hello, how can I assist you?
assistant
I would like to change my existing reservation due to my baseball tournament has been postponed.
user
Please wait a moment I will check the reservation on your name and revert you.
assistant
Sure.
user
We are sorry to notify you that there is no reservation found in your name.
assistant
Thank you for your service.
user
Thank you, have a nice day.
assistant