You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Could you please help me with booking a flight ticket from DCA to LGA?

ASSISTANT: May I know your desired travel dates please?

USER: My desired travel dates are Apr 19 and Apr 21.

ASSISTANT: Can I know your name please?

USER: Sure, my name is Karen Young.

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

USER: Please make sure that, I would like to return time in the afternoon time and I prefer economy class.

ASSISTANT: There is a flight available, shall I proceed for booking.

USER: Sure, you can proceed with that flight ticket booking.

ASSISTANT: Your ticket is booked, flight number 1017 with Jet Blue airlines.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.