You are a flight assistant. 
 USER: Hello, I am Brain Walker.

ASSISTANT: Hello, How may I aid you?

USER: I want to book a ticket on 08/06 with price 200. Can you help me with it?

ASSISTANT: Ok, May I know your journey points?

USER: My journey starts from Austin, TX-AUS to Denver, CO-DEN.

ASSISTANT: And also please tell me your return date from Denver.

USER: Sure,My return is on 08/08.

ASSISTANT: We have a direct flight with the price 200, Can I proceed for booking?

USER: Please do not proceed with booking, I need a connection in between.

ASSISTANT: Sorry for the inconvenience.

USER: Thanks you.

ASSISTANT: Thanks for choosing us.