You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Margaret Williams here. Please help me out in booking the ticket from IAD to JFK.

ASSISTANT: Sure, I will help you with that. Can I have your travel dates please?

USER: My trip dates will be Feb 15 to Feb 17.

ASSISTANT: Do you have any requirements?

USER: I need a 1 stopover in between my journey.

ASSISTANT: According to your information, we have a direct flight-1000 with price 200. Shall I book it?

USER: Please proceed.

ASSISTANT: Ok, booking is done on Hawaiian airlines.

USER: Thank you for booking.

ASSISTANT: Welcome, have a safe trip.