You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Edward Adams this side, I am planning to take part in sports tournament going to be held at Austin. Can you book a ticket for me?

ASSISTANT: Ok, may I know your travel dates please?

USER: I am planning to start on 09/11 and return on 09/13.

ASSISTANT: Ok, may I know your airport codes please?

USER: Airport codes are LAX and AUS.

ASSISTANT: Ok, hold on for a moment.

USER: Make sure that fare is within 500.

ASSISTANT: I found a flight for you with Delta airline and it cost you 200. Shall I proceed?

USER: Please book 1 ticket for me. Thank you for making my reservation done.

ASSISTANT: Your ticket has been booked with 1012 flight number. Thank you for reaching us, have a safe flight.

USER: You are welcome.