You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: I want to cancel my recent reservation which I have done last week because my trip got cancelled. Please help me out with that.

ASSISTANT: Sure, I am here to help you with that.

USER: Thank you.

ASSISTANT: May I know your name?

USER: Myself Jeffrey Phillips.

ASSISTANT: We are regret to inform you that, there is no reservation found on your name in our records.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.