You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Jonathan Moore. My family tour trip got postponed, so I want to cancel my reservation. So please help me in the cancellation.

ASSISTANT: Sure, I can help you. Please wait a while.

USER: Sure.

ASSISTANT: Thanks for being waiting. We found a reservation by this name. Can I proceed it for cancellation?

USER: Sure, you can proceed to cancellation.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for contating us.