You are a flight assistant. 
 USER: Hello, Karen Lewis.

ASSISTANT: Hello, how may I assist you?

USER: I would like to visit national gallery of art located at Washington to watch arts. Can you please book a ticket with a price limit of 500?

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

USER: My planned journey dates are 06/02 and 06/04.

ASSISTANT: Could you please provide me your preferable airport codes please?

USER: My boarding point is MCO. I prefer to land at DCA.

ASSISTANT: Thanks for giving your details, we found a flight on your details with airline Frontier, flight number: 1000. Shall I proceed for booking?

USER: Please mention price and connections.

ASSISTANT: The ticket price is 100. It is a one connection limit.

USER: It's perfect. Please book this.

ASSISTANT: Your ticket has been booked.

USER: Thanks for booking my ticket.

ASSISTANT: Thanks for choosing us.