You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Please help me to book a flight ticket from DEN to AUS.

ASSISTANT: Sure, please help me with your travel dates.

USER: My trip dates are from Aug, 22 to Aug, 24.

ASSISTANT: Do you have any requirements?

USER: I need a single connecting flight.

ASSISTANT: Ok, may I know your name please?

USER: Michael Lopez.

ASSISTANT: American Airlines has a connecting flight with number 1006 for fare 200, shall I proceed?

USER: Please proceed.

ASSISTANT: Your ticket is reserved in economy class.

USER: Thank you for booking.

ASSISTANT: Thank you for opting us.