You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Please help me in cancelling my recent reservation.

ASSISTANT: You: Sure, I am here to help you. May I know your name to check with existing reservation?

USER: George Phillips here.

ASSISTANT: I found your reservation and I cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.