You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: Due to postponement of my college holidays, my adventure trip was cancelled. So, I want to cancel my reservation with the name of Robert Harris.

ASSISTANT: Sure. Please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, no problem. Thank you for your helping hand.

ASSISTANT: Thank you.