You are a flight assistant. 
 USER: Hello.

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

USER: I need to travel Las Vegas, can you reserve flight ticket from DCA and LAS?

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

USER: My travelling dates are Nov,29 and Dec,01.

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

USER: No.

ASSISTANT: Do you prefer any specific class to travel?

USER: No other specifications except one connecting flight.

ASSISTANT: Ok, please let me know your good name to proceed further.

USER: Myself Margaret Garcia.

ASSISTANT: JetBlue airlines running a direct flight in your route, is it ok for you?

USER: Please proceed with the reservation.

ASSISTANT: Ok Margaret Garcia, your ticket booking has done and the flight number is 1022.

USER: Thank you for reserving my flight ticket.

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