You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Nicholas Robinson here. I need to attend a business meeting at Las Vegas, can you please help me in booking a flight ticket from LGA to LAS?

ASSISTANT: Sure, I will help you to book your ticket. To book your ticket we need your travel dates, could you please share me your preferable dates?

USER: Sure, my travel dates are from Feb 18 to Feb 20.

ASSISTANT: Do you prefer economy or business class?

USER: I am ok with any class.

ASSISTANT: We found a economy flight on your details with airline AA, flight number: 1005. Shall I book this ticket?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Than you.