You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help 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: May I know your name to check for the previous reservation?

USER: My name is Betty Young.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: Betty Young, there is no reservation found under your name.

USER: It's ok, thank you for your help.

ASSISTANT: You are welcome. Thank you for contacting us.