You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help 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: Myself Benjamin Turner.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry Turner, there is no active reservation found with your name in our records.

USER: It's ok, thank you.

ASSISTANT: Most welcome.