You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I serve you now?

USER: I am an artist and I want to exhibit my arts in an exhibition at Washington, help me out. Book me a flight ticket.

ASSISTANT: Sure, I am here to help you in booking a flight. May I know your name?

USER: I am Benjamin Robinson.

ASSISTANT: Please share your journey dates?

USER: My depart date is on 04/29 and return date on 05/01. I need a direct flight.

ASSISTANT: Do you have any price limit for the flight ticket?

USER: I need my ticket within price 5000.

ASSISTANT: Please share me your airport details?

USER: My airport codes are from NC- CLT to DC- DCA.

ASSISTANT: Sorry to inform you there is only one flight with single connection.

USER: OK, no issues. Thank you for the information.

ASSISTANT: Thank you have a nice day.