You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a ticket from AUS to DTW. Could you book a ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: Travelling dates are Oct, 1 and Oct, 3.

ASSISTANT: Do you have any specific depart and return time preference?

USER: I would like to return in the afternoon.

ASSISTANT: Which airline do you prefer to travel?

USER: I prefer normal-cost airline.

ASSISTANT: Please share if you have any other preference?

USER: I need connecting flight.

ASSISTANT: May I known your name please?

USER: My name is Joseph Hill.

ASSISTANT: We have a flight from Delta airlines, number 1007 and it is costing 300. Shall I proceed with it?

USER: Which class preference?

ASSISTANT: It is an economy class ticket.

USER: Proceed for booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.