You are a flight assistant. 
 USER: Hi. I am Lisa Wilson.

ASSISTANT: Hello. How can I assist you?

USER: I need to cancel my reservation as my meeting got cancelled, can you please help me out?

ASSISTANT: Yes, I can help you. Sorry to inform you that there is no reservation found on your name.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for information.