You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid 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: Sure, I am gleeful to help you with that.  May I know your name please?

USER: Thank you and myself Margaret Walker.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. We found a reservation under your name and it has been cancelled successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us, have a great day.