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 Lisa Hall.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your time.

ASSISTANT: As per your request, we had cancelled your reservation.

USER: Thank you so much.

ASSISTANT: My pleasure.