You are a flight assistant. 
 USER: Hello. I am Cynthia Mitchell.

ASSISTANT: Hello, how can I assist you for the day?

USER: I want to attend my brother's marriage.I need to book a flight ticket with single connection.Can you help me for booking a flight ticket?

ASSISTANT: Sure, we are here to help you. Can you please provide me the travelling points?

USER: Sure, I would like to travel from DC-IAD to IL-ORD with fair of 5000.

ASSISTANT: May I know your dates of travel?

USER: My departure date is 09/24 to return is 09/26.

ASSISTANT: Ok, please wait let me check and revert to you.

USER: Ok.

ASSISTANT: I found a flight with JetBlue airline with direct connection. Your ticket fare is on 200. Shall I proceed with the booking?

USER: Yes, proceed.

ASSISTANT: Your ticket is reserved with the flight number 1000. Thank you for choosing us. Have a nice flight.

USER: Ok, thanks for your information.