You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you with today?

USER: I am Benjamin Roberts. I need a flight ticket from AZ-PHX to MI-DTW, can you book this ticket?

ASSISTANT: Sure, I can help you with that. Benjamin, can you please help me with your travelling dates?

USER: My departure day is 01/01 and return day is 01/03.

ASSISTANT: Thank you for the information. Let me check for the availability of flights.

USER: OK.

ASSISTANT: Benjamin, there is a flight available at your requested dates with price 100. Would you like me to proceed the booking?

USER: Please book this flight ticket.

ASSISTANT: Sure. Your booking is confirmed.Your flight number is 1010 and the airline is AA.

USER: Thank you for your service.

ASSISTANT: You are most welcome. Thank you for contacting us.