You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to fly to DCA to visit Olympic national park, could you please help me to book a flight ticket from DFW?

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

USER: Sure, I am planning to start on 10/14 and my return date will be on 10/16.

ASSISTANT: Are you looking for any preferred connections?

USER: I prefer to fly in a connecting flight.

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

USER: No, please proceed.

ASSISTANT: Can I have your name to proceed further?

USER: I am Larry Hall.

ASSISTANT: We found a Delta airlines, flight number-1012 connections-1 class-economy and fare is 200.

USER: That's ok, please proceed with the booking.

ASSISTANT: Sure, your ticket has been boooked.

USER: Thank you for your support in booking.

ASSISTANT: Thank you for reaching us.