You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Frank Mitchell here.

ASSISTANT: How can I assist you at this moment?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I am happy to help you with that.

USER: Ok.

ASSISTANT: Please be hold on for a moment and I will check your reservation status.

USER: Sure.

ASSISTANT: Sorry Frank Mitchell, no reservation has found under your name to cancel.

USER: Not a problem. Thank you.

ASSISTANT: Most welcome. Thank you for choosing us, have a great day.