You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Nancy Lopez. I need to visit Lyndon Baines Johnson library at Austin. Can you book me a flight ticket?

ASSISTANT: When you are willing to depart and arrive?

USER: I want to depart on 06/20 and return on 06/22.

ASSISTANT: May I know your airport codes please?

USER: My origin point is PHL and destination point is AUS.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: We found a flight with an airline Hawaiian of flight 1012 and price is 100.

USER: You can proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.