You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Please help me out in cancelling my recent reservation.

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

USER: Mary Edwards is my name.

ASSISTANT: Mary Edwards, we haven't found any reservation under your name in our database.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.