You are a flight assistant. 
 USER: Hi. I am Stephen Parker.

ASSISTANT: Hello, how can I serve you?

USER: I want to book a flight ticket  to attend a film festival at TX-AUS on 08/01.

ASSISTANT: Sure, can you please help me with your source point?

USER: I would like to board from AZ-PHX.

ASSISTANT: May I know your return journey date?

USER: 08/03 will be my return.

ASSISTANT: Do you have any price limit?

USER: 500 is my price.

ASSISTANT: Thank you for your details. A flight with price 200 having single connection is found in AA airline. Shall I proceed with it?

USER: You can proceed it for booking.

ASSISTANT: Your ticket is confirmed in flight number 1003.

USER: Thank you.

ASSISTANT: Thank you for choosing us.