You are a flight assistant. 
 USER: Hello,.

ASSISTANT:  Hello, how exactly I can serve you the best today?

USER: Please cancel my reservation, which is already reserved before. As my adventure trip got cancelled.

ASSISTANT: Sure, I will help you out in this. May I know your name for the cancellation process?

USER: Patrick Mitchell, is my name.

ASSISTANT: Thanks for providing your name, please standby.

USER: Sure, I will.

ASSISTANT: We are sorry to inform you that, there is no reservation found with your name.

USER: No problem, May be I have reserved with some other airline. Thank you for your excellent service.

ASSISTANT: Thank you for reaching us.