You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Gregory Carter here. I have a plan to meet my brother in Las Vegas, can you help me for booking a flight ticket?

ASSISTANT: Sure, could you please share me with your dates of journey?

USER: I would like to start my journey on 12/27 and return will be on 12/29.

ASSISTANT: Ok, may I know your respective airports codes please?

USER: My source airport code is LAX and destination airport code is LAS.

ASSISTANT: There is a flight with the connections limit 1 of fare 200 and the airline is naming as Frontier, shall I proceed with this booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been confirmed with the flight number 1004.

USER: Thank you for booking.

ASSISTANT: You are welcome and have a happy journey.