You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Myself Kevin Garcia from Las Vegas. I want to visit Austin in this month. Can you please book a flight ticket for me?

ASSISTANT: May I know your travel dates?

USER: Thank you for accepting my request, I want to take off on 06/16 and please confirm my return ticket also on 06/18.

ASSISTANT: Please help me with your airport codes?

USER: I would like to take off from LAS airport because this airport is near to my location and destination airport is AUS.

ASSISTANT: There is a flight with fight number 1000 with price is 100, can I proceed?

USER: That's perfect, please confirm this flight ticket for me.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Most welcome.