You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist 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, can I know your name please?

USER: My name is Raymond Thompson.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name to cancel.

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

ASSISTANT: Thank you for approaching us.