You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to visit National Gallery of Arts at DCA, can you help me with booking?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travelling dates are Jan 12 and Jan 14.

ASSISTANT: Can you please share your origin airport code?

USER: My origin airport code is DFW.

ASSISTANT: Is there any connection preference?

USER: I need a break in between my journey.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May  know your name please?

USER: I am Donna Parker.

ASSISTANT: United airlines is providing connecting flight for you with the fare of 100 in economy class, shall I proceed with the booking?

USER: Please proceed with booking.

ASSISTANT: Your ticket is booked with the flight-1000.

USER: Thank you for confirming my ticket.

ASSISTANT: Thank you for choosing us.