You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a ticket from Las Vegas to attend my friend engagement.

ASSISTANT: Sure. Can you please share your airport codes?

USER: My source code is NV - LAS. My destination is Washington, DC - DCA.

ASSISTANT: Ok, may I know your journey dates?

USER: My travel dates are 10/17 and 10/19.

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

USER: I am looking for single connection with price 5000.

ASSISTANT: Sure, can I have your name to proceed?

USER: My name is Dorothy Adams.

ASSISTANT: Ok, please wait for a while, let me check the availability of flight and get back to you.

USER: Sure.

ASSISTANT: Thanks for you valuable time, we are pleased to inform you that we have found a Southwest airline, flight number-1006 connections-1 and  price limit is 200. Shall I proceed to booking?

USER: Sure, you can proceed.

ASSISTANT: Sure, your ticket has been reserved. Thanks for approaching us, have a great day ahead.

USER: Thank you.