You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you at this moment?

USER: I am James Hill from New York.

ASSISTANT: Nice meeting you Hill.

USER: Thanks, nice to meet you too. I have to go Austin next month for my film shooting purpose, can you please book a direct flight for me?

ASSISTANT: That sound's good, I will help you with that. Can you please provide your planned dates of travelling dates?

USER: Thank you, I want to take off on 09/21 and book my return ticket also on 09/23.

ASSISTANT: Ok, may I know your preferable origin and destination airport codes for booking?

USER:  I would like to fly from JFK airport and destination airport is AUS because these two airports are very convenient for me to travel.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Ok.

ASSISTANT: Yes, there is a direct flight with the fare of 200 provided by Spirit airlines. Shall I proceed with this?

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

ASSISTANT: Ok, your ticket has been booked in flight number 1015.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us, have a great journey.