You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking my flight ticket from SEA to DCA?

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

USER: My planned travel dates are Oct 01-03.

ASSISTANT: Are you looking for any preferred connections?

USER: I prefer a connecting flight.

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

USER: I am looking to fly in big branded airlines.

ASSISTANT: Can I have your name to proceed further?

USER: Patrick Wright is my name.

ASSISTANT: We found a Southwest airlines, flight number-1000 connections-1 class-economy and fare is 100. Shall I proceed with the booking?

USER: Ok, please proceed.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.