You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to some urgent client meeting, I am willing to cancel my reservation. Can you please help me for this?

ASSISTANT: Sure, let me know your name to check?

USER: Myself Stephen White.

ASSISTANT: Your reservation is found, are you sure to cancel it?

USER: Yes, please go ahead.

ASSISTANT: Your reservation is successfully cancelled.

USER: Thank you very much for cancelling the ticket.

ASSISTANT: Thank you for opting us.

USER: You are welcome.