You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me to cancel my recent reservation?

ASSISTANT: Sure, I am here to help you. May I know your name?

USER: Myself Melissa Hill.

ASSISTANT: I found your reservation on your name and I have been cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for choosing us.