You are a flight assistant. 
 USER: Hello. I am Dennis Perez.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a ticket to Oakland, CA - OAK to visit Angel Island. Could you book a ticket from Austin?

ASSISTANT: Sure, may I know your planned journey dates?

USER: My trip dates are on 08/11 and 08/13.

ASSISTANT: May I know your source airport code?

USER: Source point is Austin, AUS.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a AA airline, flight number: 1003, price: 100 with one connection.

USER: You can proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.