You are a flight assistant. 
 USER: Hi, Joshua Green here.

ASSISTANT: Hello. How can I assist you Joshua Green?

USER:  I want to book a ticket from LAS to LAX, can you help me?

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

USER: Sure, my itinerary dates are 03/16 and 03/18.

ASSISTANT: Delta airlines is providing service on this route with a ticket fare of 100, shall I book your ticket?

USER: Ok, you can book it for me.

ASSISTANT: Your ticket is confirmed with flight number 1000.

USER: Thank you so much for your help.

ASSISTANT: Thank you, have a safe journey.