You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I'm Karen Harris. I am planning to attend convocation meeting at Washington, can you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your journey dates please?

USER: Sure, I would like to take off on 10/19 and return back on 10/21.

ASSISTANT: Please help me with your airport codes.

USER: My source airport code is DCA and the destination airport code is IAD.

ASSISTANT: Harris, please wait for a minute.

USER: Ok, but please make sure that the connection limit is 1.

ASSISTANT: Harris, I found a flight in JetBlue airlines available with price 200. Shall I book the ticket?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1029. It has 1 connection.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for choosing us, hope you visit us again.

USER: You are welcome.