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

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to visit National gallery of art at Washington, can you please book a flight under the price 500?

ASSISTANT: Sure, Can you share me trip dates please?

USER: My dates of travel are 11/05 to 11/07.

ASSISTANT: May I know your journey locations?

USER: My airport codes are from WA-SEA to DC-DCA.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, wait for some time.

USER: Ok.

ASSISTANT: Thanks for waiting we found UA airline with single connection and number 1025 fare of 200. Shall I proceed for booking?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your confirmation.

ASSISTANT: Thanks for choosing us, Have a safe journey.