You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Joseph Clark. I am looking for a flight from CLT to DCA, can you book the flight ticket for me?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, my travel dates are from 12/17 till 12/19.

ASSISTANT: There is a flight with connection limit 0 and fare 400, shall I proceed for booking?

USER: Please proceed with it.

ASSISTANT: Your ticket is booked, flight number 1005.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.