You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am Eric Green.

ASSISTANT: Ok.

USER: I need a direct flight to attend a client meeting in Chicago, so please book a flight ticket from Austin.

ASSISTANT: Sure, could you please provide your journey locations with airport codes?

USER: My source and destination airport codes are TX - AUS, IL - ORD.

ASSISTANT: May I know your journey dates?

USER: I want to fly on 08/31, return on 09/02.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a direct flight 1014 from Spirit airline has fare 200. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your booking has been confirmed with an economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.