You are a flight assistant. 
 USER: Hello,. I am Karen Moore.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to make a trip to New York, NY - JFK to participate in Brooklyn walking tour. Can you book me a ticket within the range 1000?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Could you please provide your take off airport code?

USER: Take off is from DCA.

ASSISTANT: May I know when you want to travel?

USER: I want to travel on 08/10, and need to catch return flight on 08/12.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight in UA airline has fare 600 and flight number is 1016.

USER: Proceed with the booking.

ASSISTANT: Your booking has been confirmed with a halt.

USER: Thanks for the assistance.

ASSISTANT: Thank you for connecting with us.