You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Deborah Turner here.

ASSISTANT: How can I assist you at this moment?

USER: Can you cancel my flight ticket reservation?

ASSISTANT: Sure, I will help you with that. Please be hold on for a moment.

USER: Ok.

ASSISTANT: Sorry Deborah Turner, no reservation has found under your name to cancel.

USER: Not a problem. Thank you.

ASSISTANT: My pleasure. Thank you for choosing us, have a good day.