You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I reserve a plane ticket as per my interest only but I want to cancel my ticket as I have to go my destination tomorrow only. Can you check my existing plane ticket and cancel it for me?

ASSISTANT: Sure, I can help you. May I know your name for checking your reservation details?

USER: Sure. Myself Ronald King.

ASSISTANT: Ronald, please be on hold for a moment for checking and cancelling your ticket.

USER: Definitely.

ASSISTANT: Sorry Ronald, there is no active reservation found on our database under your name.

USER: That's ok, may be my friend cancel my ticket previously. Thank you for checking.

ASSISTANT: You are welcome. Thank you for reaching us, have a nice day.