You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please book the ticket from DCA to JFK? As I'm planning to visit New York.

ASSISTANT: Can I know your travelling dates?

USER: Sure, I would like to depart from my source location on 17th Nov and I want to return back by 19th Nov.

ASSISTANT: Can I know your connection limit please?

USER: I prefer single connected flight.

ASSISTANT: Do you have any other preference?

USER: I don't have any other specifications.

ASSISTANT: May I know your name please?

USER: My name is Steven Brown.

ASSISTANT: As per your requirements. There is a connecting flight with ticket fare 100 and 1027 as flight number in American Airline. Shall I proceed with booking?

USER: That's fine for me, you can proceed for booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you so much for your help.