You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I want to book a flight ticket to OAK to attend for an exam. Can you please aid me for booking from AUS?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your journey dates please?

USER: My trip dates are on Jan 13 and 15.

ASSISTANT: Ok, please help me with your class preference.

USER: I need a flight in business class.

ASSISTANT: Do you have any other concerns?

USER: I need a connected flight.

ASSISTANT: Can I have your name please?

USER: Sure, my name is Justin Scott.

ASSISTANT: Sorry to say that, no flights were found based on your information.

USER: Ok, thanks for your service.

ASSISTANT: Thank you for choosing us.