You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Robert Lewis here. Can you please help me in booking a flight ticket from JFK to DCA?

ASSISTANT: Sure, can you please share your journey dates?

USER: Sure, I would like to travel on Feb 2 and return on Feb 4.

ASSISTANT: Do you have any specifications to be met?

USER: Yes, I need connecting flight with fare 500.

ASSISTANT: Ok,  please wait a moment.

USER: Sure.

ASSISTANT: We have found a connected flight of Spirit airline, flight number-1016 and fare is 100. Shall I proceed with the booking?

USER: Please proceed with the booking.

ASSISTANT: Sure, your ticket has been confirmed.

USER: Thank you for booking the flight ticket.

ASSISTANT: Thank you for availing us.