You are a flight assistant. 
 USER: Hello.

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

USER: I am Patrick Allen. I need to book a flight ticket from DCA to EWR, Can you please help me for booking?

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

USER: I would like to travel on 01/16 to 01/18.

ASSISTANT: Ok Patrick Allen, please wait a moment to check flight availability in your route.

USER: Sure.

ASSISTANT: Spirit airlines running a flight in your route with connection 1 and the fare of the ticket is 200. Is it ok for you?

USER: Ok, proceed for booking.

ASSISTANT: Ok Patrick Allen, your ticket booking has done and the flight number is 1015.

USER: Thanks for your information.

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