You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: My name is Daniel Roberts. I have a urgent meeting to attend in Chicago, could you help me in booking the ticket?

ASSISTANT: Sure, may I know your journey details?

USER: It's from 02/27 to 02/29.

ASSISTANT: Airport codes?

USER: It's from JFK to ORD. Make sure the connection is 0.

ASSISTANT: Sorry Daniel, there is no flight for this search. Sorry for inconvenience.

USER: That's ok.

ASSISTANT: Thank you, have a nice day.

USER: Thank you for checking.