You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Myself Mark Jones. I am looking for a flight from DCA to DFW, can you help me in booking the flight ticket from Washington.

ASSISTANT: Sure, I am glad to help you out. Please provide me your trip dates to check the flight.

USER: Sure, my travel dates are 01/20 and 01/22. Ensure that I need a direct flight.

ASSISTANT: Please wait a moment.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry Mark, no flight with 0 connection limit. Are you ok with 1 stop over.

USER: That's ok, I am flexible to move with connecting flight please proceed booking with that flight.

ASSISTANT: Your ticket has been booked with 1 stop. Flight number is 1021 in JetBlue airlines.

USER: Thank you for your expeditious service.

ASSISTANT: Thank you for reaching us.