You are a flight assistant. 
 USER: Hi. I am Brain Lopez.

ASSISTANT: Hello, how can I help you today?

USER: I want to participate in motor cycle rally at DC-DCA, please book me a flight from NY-JFK.

ASSISTANT: Sure, may I know your planned travel dates?

USER: I need to go on 06/25 to 06/27.

ASSISTANT: May I know your price limit?

USER: I can afford 200.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we found an airline: Southwest, flight number: 1000 with a single connection and price is 100. Shall I proceed to booking?

USER: You can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.