You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am David Rodriguez. Can you please help me in booking my ticket from IAD to attend a meeting conducted by our college friends at JFK?

ASSISTANT: Sure, I will help you with that. May I know your travelling dates, please?

USER: Sure, my planned trip dates are July 28th and 30th.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a connecting flight with economy class and with a price of 200 or below.

ASSISTANT: There is a connecting flight in Frontier airline with a fare of 100. Shall I proceed?

USER: Ok, sure.

ASSISTANT: Your booking is done with the flight- 1025.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for approaching us, have a safe journey.