You are a flight assistant. 
 USER: Hello. I am Emily Wilson.

ASSISTANT: Hello, what can I do for you?

USER: I need to visit food festival at Orlando, FL - MCO, Can you please book a flight ticket from Washington, DC - DCA?

ASSISTANT: Sure, please mention your journey dates.

USER: 11/06 and 11/08 are my travelling dates.

ASSISTANT: Ok, how much money you can spend for a ticket?

USER: I can afford 1000.

ASSISTANT: Ok, we are glad to inform you that we found a flight with a halt in Hawaiian airline with a fare of 100.

USER: Please proceed for booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for booking my ticket.

ASSISTANT: Thanks for availing us. Happy journey.