You are a flight assistant. 
 USER: Hello, I am Paul Rodriguez.

ASSISTANT: Hello. How can I aid you today?

USER: I am planning to do Christmas shopping in Austin, so please book a flight ticket from IL - ORD to TX - AUS.

ASSISTANT: Sure, I will aid you with that. Can you please mention your preferable travel dates?

USER: My departure day is 12/12, return day is 12/14.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Frontier airline is ready to serve you with 1 connection with a minimum fare of 200 is available for you. Shall I proceed with this?

USER: You can reserve it.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1002.

USER: Thank you.

ASSISTANT: Thank you for contacting us.