Hello.
user
Hello, How can I help you today?
assistant
I book a ticket for two days to visit at Detroit, but due to heavy snow at Detroit I want to cancel my flight ticket.
user
Sure, May I know your name?
assistant
My name is Scott Campbell.
user
 Wait a minute.
assistant
Sure.
user
Sorry to tell that there is no reservation on your name.
assistant
Thank you for the information.
user
 Thank you for contacting us.
assistant