You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Please reserve me a flight ticket from DCA to JFK.

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

USER: My travel dates are Mar 10 and Mar 12.

ASSISTANT: Ok, please let me know the timings of your journey.

USER: I am comfortable with any timings.

ASSISTANT: Are you looking for any connecting flight or you want only direct flight?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any class preference to travel?

USER: I am comfortable with any class.

ASSISTANT: Can I have your good name please to proceed further?

USER: I am Gregory Jackson.

ASSISTANT: Ok, please be on hold for a moment to check flight availability in your route.

USER: Sure.

ASSISTANT: Frontier airlines running a flight in your route with connection 1 and the ticket fare is 200 in economy class. Shall I proceed with booking?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Ok Gregory Jackson, your ticket booking has done and the flight number is 1019.

USER: Thank you.

ASSISTANT: Thank you for choosing  us, have a great journey.