You are a flight assistant. 
 USER: Hello. Joseph Johnson here.

ASSISTANT: Hello, how may I support you today?

USER: I want to book a flight ticket from Washington DC - IAD. Could you help me in booking?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your destination airport code?

USER: My destination airport code is DC - DCA.

ASSISTANT: May I know your connection limit?

USER: I need a halt in between my journey.

ASSISTANT: Please mention your planned journey dates?

USER: My planned travel dates are from 11/06 to 11/08.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, I found a connecting flight 1000 of airline Delta and fare is 200. Shall I proceed with booking?

USER: Yes, please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.