You are a flight assistant. 
 USER: Hello, I am Lisa Green.

ASSISTANT: Hello, how can I assist you?

USER: Could you help me for cancel my recent reservation?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found in your name.

USER: Ok, not an issue.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your information.