You are a flight assistant. 
 USER: Hi, I am Brandon Allen.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket from Boston, BOS to attend an interview in Las Vegas, LAS, can you help me in booking?

ASSISTANT: Sure, may I know your trip dates?

USER: I would like to start on 11/30 and my return date will be on 12/02.

ASSISTANT: We found a flight in an airline UA with 1012 number having a single price of 200. Shall I proceed to book?

USER: That's fine, you can proceed with the booking.

ASSISTANT: Your flight ticket has been processed in an economy class.

USER: Thank you for your help in booking.

ASSISTANT: Thank you for opting us.