You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Mark Wilson.

ASSISTANT: How may I aid you today?

USER: I would like to cancel my reservation. Can you help me?

ASSISTANT: Sure Wilson, I am here to help you out in cancelling the flight ticket. Please allow me a moment to check the previous reservation on your name.

USER: Ok, take your time.

ASSISTANT: Sorry Mark, there is no reservation on your name.

USER: Its ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.