You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you for the day?

USER: Carolyn Moore is here. I would like to book a flight ticket from IAD to DFW, can you please aid me in making an airline reservation?

ASSISTANT: Sure, may I know your trip dates?

USER: My trip dates are Sept 16th and Sept 18th.

ASSISTANT: Do you have any preferences to book a ticket?

USER: No.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: We found a direct flight in United Airlines with flight number 1012 having an economy class with price 100. Shall I proceed for booking?

USER: Please reserve it.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.