You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Michael Moore here.

ASSISTANT: How may I aid you?

USER: I want to cancel my ticket due to dense fog in my hometown.

ASSISTANT: Sure, I am here to help you out.

USER: Ok.

ASSISTANT: Michael Moore, we haven't found any reservation under your name in our database.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.