You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Frank Martin. I want to cancel my reservation, due to my personal issues. Could you help me in cancellation?

ASSISTANT: Sure, I can help you. Please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting. There was no reservation found in the list on your name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for approaching us.