You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. In which way I can help you today?

USER: I am Mark Wilson from Las Vegas.

ASSISTANT: Welcome to flight booking agency Mark.

USER: Thanks, I have to attend a business meeting in New York, can you please help me in booking flight ticket?

ASSISTANT: Sure, I am gleeful to help you with that. Can you please provide your planned dates of travelling?

USER: Thank you, I want to take off on 08/27 and book my return ticket also on 08/29.

ASSISTANT: Ok, may I know your origin and destination airport codes for booking?

USER: I would like to fly from LAS and destination airport is EWR.

ASSISTANT: Please wait a moment to check the flights availability in your route.

USER: Ok.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by UA airlines. Shall I proceed with this?

USER: I am ok with this flight, please proceed.

ASSISTANT: Ok, your ticket has been booked in flight number 1000.

USER: Thank you for assisting me.

ASSISTANT: Thank you for using our services, have a great journey.