You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I want to book a flight ticket to Las Vegas with price under 200. Can you help me with it?

ASSISTANT: Sure, to book your ticket I need to know your travelling dates?

USER: Travelling dates are 09/25 and 09/27.

ASSISTANT: Please forward with your airport codes?

USER: Airport codes are LGA-LAS.

ASSISTANT: May I know your good name please?

USER: My name is Alexander Rodriguez.

ASSISTANT: In Delta airline with fare of 100 having a halt,  we found a seat for you. Shall I proceed for booking?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thanks for the help.

ASSISTANT: Thanks for availing us.