You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Frank Johnson.

ASSISTANT: How may I assist you? Nice to meet you Frank.

USER: I would like to cancel my reservation, could you help me out?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for your patience. But I am sorry to say that there is no flight reservation on your name to cancel it.

USER: That's ok. Thank you for your time.

ASSISTANT: Thank you.