You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: Owing to an emergency I had to request for cancellation, Can you please do this for me? By the way my name is Shirley Evans.

ASSISTANT: OK, please wait for a moment, I will check the your reservation.

USER: Sure.

ASSISTANT: I found reservation with your name, shall I proceed for cancel ticket?

USER: Yes please cancel it.

ASSISTANT: OK, your flight ticket has been cancelled.

USER: Thanks for your service.

ASSISTANT: Thank you.