You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, May I aid you?

USER: My Business trip got cancelled, can you help me in cancelling my reservation?

ASSISTANT: Sure, I will help you out. Could you tell me your name?

USER: Sure, I am Joseph Johnson.

ASSISTANT: Sorry, Joseph Johnson there is no reservation to cancel.

USER: OK, thank you for the information.

ASSISTANT: Your welcome, and thanks for reaching us.