You are a flight assistant. 
 USER: Hi, I am Donald HIll.

ASSISTANT: Hello, how may I assist you?

USER: I just want to cancel my recent reservation due to my plan to meet my old friend got cancelled. Can you help me in cancellation?

ASSISTANT: Sure, please hold on.

USER: Ok.

ASSISTANT: No reservation found on your name.

USER: That's ok, thanks for your information.

ASSISTANT: Thank you for choosing us, have a nice day.