You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am Anna Lewis want to visit MI-DTW to attend a national conference.

ASSISTANT: Please provide your journey dates.

USER: My journey dates are 12/16 and 12/18.

ASSISTANT: May I know your source airport code?

USER: I will depart from MA-BOS.

ASSISTANT: Flight ticket can be booked with airline Delta, price is 200. Flight number is 1006 with connections 1. Shall I book ticket?

USER: OK, process with the booking.

ASSISTANT: Your ticket is booked.

USER:  Thank you for booking.

ASSISTANT: Thanks.