You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you?

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, we are happy to help you. May I know your good name to proceed further?

USER: Thank you and myself Jonathan Mitchell.

ASSISTANT: Sorry, we did not find any active reservation on your name in our records.

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

ASSISTANT: Thank you for contacting us.