You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to cancel my reservation as my plan to visit New York is cancelled. Can you help me with that?

ASSISTANT: Sure, I will help you in that.

USER: Thank you.

ASSISTANT: Ok, may I know your name for proceeding?

USER: My name is Nancy Taylor.

ASSISTANT: Ok, please be online. Based on your name we haven't found any previously reserved flight ticket to cancel.

USER: Ok, thank you for the information.

ASSISTANT: Thanks for contacting us.