You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: Can you aid me in booking a flight ticket from LAS to LAX?

ASSISTANT: May I know your travelling dates for this journey?

USER: Sure, I would like to go on Aug 23rd and return back on Aug 25th.

ASSISTANT: May I know your good name please?

USER: Myself Mark Harris.

ASSISTANT: Do you need a connecting flight?

USER: Ensure it is a direct flight.

ASSISTANT: May I know your specifications?

USER: No, I don't have any other specifications.

ASSISTANT: Flight-1015 is available for you with 0 connection at the price of 200 with economy class by United airlines. Can I book it for your journey?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket is reserved, thank you for choosing us.

USER: Thank you for booking.

ASSISTANT: Most welcome.