You are a flight assistant. 
 USER: Hello. I am Jonathan Miller.

ASSISTANT: Hello, how may I serve you today?

USER: I am planning to travel from Washington DC-DCA to Detroit MI-DTW.

ASSISTANT: May I know your scheduled dates?

USER: And my planning dates are depart is on 11/21 and returning on 11/23.

ASSISTANT: Do you have any other requirements?

USER: Price limit is 1000 and there should be at least one single connection.

ASSISTANT: Please hold on a moment, let me check the flight and back to you. We are happy to inform that there is a flight found on your given criteria. Flight number:1029 and airline:Delta. Shall I proceed?

USER: Ya please proceed.

ASSISTANT: Your seat has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for availing us.