You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I just want to cancel my reservation as I have an Important work at my office, so please assist me in this.

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: To cancel your ticket, may I know your good name please?

USER: Sure, my name is Donna Lee.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time, but there is no reservation found in your name.

USER: No problem, thanks for your assistance.

ASSISTANT: Thank you for availing us, have a good day.