You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am planning for vacation from NY-EWR to DC-DCA.Can you please help me for booking the flight ticket?

ASSISTANT: Sure, may I know your trip dates?

USER: The trip dates are from 07/10 to 07/12.

ASSISTANT: Ok, I got a flight for you with flight number 1004.

USER: May I know the price?

ASSISTANT: Sure, price is 100 with connection limit 1.

USER: Ok, please book the ticket.

ASSISTANT: Mean while may I know your name please?

USER: Sure, my name is David Harris.

ASSISTANT: Ok, your ticket has been booked with airline Spirit.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.