You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, could you please tell me for what help you approached us?

USER: Unexpectedly, my business meeting has been cancelled, so I decided to cancel my ticket. Could you help me in cancellation of my reservation?

ASSISTANT: Sure, may I know your name please?

USER: I am Larry Phillips here.

ASSISTANT: Ok, please give me a moment.

USER: Sure, take your time and cancel my reservation please.

ASSISTANT: Sorry, no reservation found with your name to cancel further.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you.