You are a flight assistant. 
 USER: Hello. I am Patrick Baker.

ASSISTANT: Hello, how can I aid you today?

USER: I want to book a connected flight to enjoy in Beer festival with my friends at Chicago. Can you help me with this?

ASSISTANT: Sure, may I know your journey airport codes?

USER: Sure, my source is Austin, TX - AUS. My destination airport code is IL - ORD.

ASSISTANT: Could you please provide your planned dates of travel?

USER: I will depart on 12/10 and return on 12/12.

ASSISTANT: Ok, please wait a while.

USER: Sure.

ASSISTANT: Thanks for your time. we found a airline according to your request. UA airline, flight number 1015 and price is 200.

USER: Ok, please proceed for booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for picking us.