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

ASSISTANT: Hello, how may I help you?

USER: I want to can cancel my reservation, can you help me out?

ASSISTANT: Sure, please wait for a minute.

USER: Ok.

ASSISTANT: Sorry to inform that there is no reservation found with your name.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.