You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Stephanie King. I am planning to book a ticket to attend a meeting at LGA. Can you please help me out to book a ticket from DCA?

ASSISTANT: Sure King, may I know your preferred journey dates?

USER: I am planning to travel on 12/21 and return back on 12/23.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: I found a flight in JetBlue airlines with price 200. Can I proceed for booking the ticket?

USER: Yes, you can book it.

ASSISTANT: Your ticket is confirmed and the flight number is 1025.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.