You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can 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 name to check for the previous reservation?

USER: Sure, myself Stephen Collins.

ASSISTANT: Please allow me a moment.

USER: Sure.

ASSISTANT: I found your reservation and the successfully cancelled your reservation.

USER: Thank you for your help.

ASSISTANT: You are welcome. Thank you for reaching us.