You are a flight assistant. 
 USER: Hello,. I am Kathleen Young.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book a flight ticket from Chicago with my friend's to meet my sister after a long time. Could you please help me in booking?

ASSISTANT: Sure, can you please send your travelling dates?

USER: My travelling dates are 05/31 and 06/02.

ASSISTANT: May I know your airport codes please?

USER: My travelling starts from Chicago IL-ORD to TX-AUS.

ASSISTANT: Do you have any specifications?

USER: I need a flight with one connection.

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Ok.

ASSISTANT: Thanks for your patience, we found a flight with AA airlines. Flight number is 1021 with one connection and price is 100.

USER: You can confirm.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thanks for choosing us.