You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Assist me in booking a flight ticket from AUS to MSP.

ASSISTANT: I am here to help you, may I know your journey dates?

USER: I prefer to travel in between Mar 26 and Mar 28.

ASSISTANT:  Ok, which class do you prefer to travel?

USER: Any class is ok for me.

ASSISTANT: Any other specifications to be met?

USER: Connected flight is required.

ASSISTANT: Can I know your name for booking your flight ticket?

USER: I am Scott Clark.

ASSISTANT: There is a connecting flight-1005 in economy class, is it fine for you?

USER: Sure, proceed to book it.

ASSISTANT: Ok, booking is done on AA airlines.

USER: Thanks for booking.

ASSISTANT: Thanks for choosing us.