You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist 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, may I know your good name please?

USER: Myself Mary Walker.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: There is a reservation found as per your name in our database, shall I cancel it?

USER: Please cancel it.

ASSISTANT: Your reservation has been cancelled.Amount will be credited in your bank account within four working days.

USER: Thank you so much for your help.

ASSISTANT: You are welcome.Thank you for reaching us with a query.