You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Betty Phillips.

ASSISTANT: I hope you are good today, how can I help you?

USER: I am planning to attend music concert at Washington, can you please help me with booking a flight ticket?

ASSISTANT: Sure, I will help you. Please provide your desired travel dates?

USER: Sure, I would like to take off on 04/01 and return back on 04/03.

ASSISTANT: May I know your preferred airport codes?

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

ASSISTANT: Please wait a while.

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

ASSISTANT: Flight is available with Southwest airlines, fare is 200 and connection limit is 1. Shall I proceed for booking?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked with flight number 1000.

USER: Thank you for your help.

ASSISTANT: Thank you for your help.