You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me in booking from AUS to MSP, as there is a business meeting to attend?

ASSISTANT: Sure, I will help you. Can I have your planned journey dates please?

USER: My trip dates are Sep 21 to Sep 23.

ASSISTANT: May I know your name please?

USER: I am David Lewis.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: I need a connecting flight.

ASSISTANT: May I know your class preference?

USER: I am comfortable in any class.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: I found an economy class in United Airlines with fare 200 and it is a connecting flight. Can I book your ticket?

USER: You can reserve it.

ASSISTANT: Ok, your booking is confirmed with flight number 1028.

USER: Thank you.

ASSISTANT: Thank you for choosing us.