You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I have a plan to visit Washington. Can you help me in booking flight ticket from DEN to DCA?

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

USER: My trip dates are June 23 to June 25.

ASSISTANT: Please share me your connection limit.

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: I don't have any other specifications.

ASSISTANT: Your good name please.

USER: Myself Carol Hall.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: We found a direct airline: Delta, flight number: 1008 and price is 100.

USER: Please proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.