Hello,.
user
Hello, how can I serve you today?
assistant
 Owing to an emergency, my planned to Sky diving with friends has been cancelled. Can you help me with that?
user
Sure, may I know your good name?
assistant
I am Jonathan Turner.
user
Sorry to say that, no reservation was found with your good name.
assistant
Ok, no problem. Thanks or the information.
user
Thank you for opting us.
assistant