You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve 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, may I know your name?

USER: Myself Stephen Hill.

ASSISTANT: I have found your reservation, shall I cancel it?

USER: Yes, please cancel it.

ASSISTANT: Your booking is cancelled successfully.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a nice day.