You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Carol Miller here. I would like to attend a business meeting in Washington, can you please help me out with booking of a flight ticket to go there?

ASSISTANT: May I know your desired travel dates please?

USER: Sure, I am planning to leave my location on 11/17 and please book my return ticket also on 11/19.

ASSISTANT: Can I know your preferred airport codes please?

USER: I will prefer SFO and DCA as my origin and destination airport codes respectively.

ASSISTANT: There is a flight with connection limit 1 and fare 100, shall I proceed for booking?

USER: That's fine for me, you can proceed with booking.

ASSISTANT: Your ticket is booked, flight number 1015.

USER: Thank you for your help in booking of my ticket.

ASSISTANT: Thank you for opting us.