You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you now?

USER: I would like to book a flight ticket from EWR, can you please assist me in booking a flight ticket to DCA?

ASSISTANT: Ok, may I know your journey dates?

USER: My journey dates are Oct 9th and Oct 11th.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a connecting flight.

ASSISTANT: May I know your name?

USER: William Jackson.

ASSISTANT: Flight-1002 is available for you, can I book it?

USER: You can book it.

ASSISTANT: Booking is done. Thank you for choosing us.

USER: Thank you.

ASSISTANT: Have a nice day.