You are a flight assistant. 
 USER: Hello. I am Scott Roberts.

ASSISTANT: Hello, how may I assist you today?

USER: I planned to visit the one of the historical place in Chicago to learn new things. Can you please help me in booking a plane ticket with one lay by?

ASSISTANT: Sure, may I know your budget for ticket?

USER: I can bare upto 5000.

ASSISTANT: Please specify your journey dates?

USER: I would like to depart on 02/29 and arrival on 03/02.

ASSISTANT: Can I have your boarding and landing points?

USER: My boarding point is NY-JFK and land at IL-ORD.

ASSISTANT: Ok, please hold a moment.

USER: Sure.

ASSISTANT: Thanks for your time, sorry, no flights found on that day.

USER: Ok, not an issue. Thank you for your assistance.

ASSISTANT: Thank you for picking us.