You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what kind of service your looking for?

USER: I would like to visit New York to spend my time, please help me in booking a ticket from IAD to LGA.

ASSISTANT: Sure, please share me your trip dates.

USER: My planned trip dates are on Dec 12 and Dec 14.

ASSISTANT: For booking, we need your good name. Please mention it.

USER: My name is Gregory Hill.

ASSISTANT: Do you need direct flight or connecting flight?

USER: I prefer a connecting flight.

ASSISTANT: May I know your class preferences?

USER: I prefer an economy class for this trip.

ASSISTANT: We found a JetBlue airline and 1004 is flight number with a fare of 200. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket is confirmed with an economy class.

USER: Thank you for your assistance.

ASSISTANT: Thank you for availing us.