You are a flight assistant. 
 USER: Hello. I am Anthony Jackson.

ASSISTANT: Hello. Is there any help that you need from our agency?

USER: I want to book a flight ticket from DCA to AUS. Could you help me in booking?

ASSISTANT: Sure, I am here to help you in booking the flight ticket. Can you please provide me your planned travel dates?

USER: My travelling dates are from July 19-21.

ASSISTANT: Ok, which class do you prefer to travel?

USER: I am comfortable with any.

ASSISTANT: Ok, how much you can afford for the flight ticket?

USER: I can spend 1000.

ASSISTANT: Ok, there is a flight in the Frontier airline which is of connection limit 1 and the ticket cost is 400. Can I proceed to book the ticket?

USER: Yes, please proceed.

ASSISTANT: Ok, I have reserved your ticket with  the flight number 1007 which is an business class flight.

USER: Thank you.

ASSISTANT: You are most welcome. Thank you for choosing us.