You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Please help me in booking flight ticket from DCA to JFK.

ASSISTANT: Sure, can you please share your journey dates?

USER: My trip dates are Jan 27 to Jan 29.

ASSISTANT: Are you looking for any preferred connections?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: Let me know your name to proceed further?

USER: Michael Parker.

ASSISTANT: We found a United airlines, flight number-1021 connections-1 class-economy and fare is 200.

USER: You can book.

ASSISTANT: Shall I proceed with the booking?

USER: Sure.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.