You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Due to some problems my trip was cancelled so can you please cancel my flight ticket?

ASSISTANT: Sure, I am here to serve you.

USER: Thank you for your response.

ASSISTANT: May I know your name?

USER: Sure, my name is Raymond White.

ASSISTANT: There is no reservation found under your name to cancel.

USER: Oh! It's ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thank you for your information.