You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Margaret Campbell.

ASSISTANT: May I know your concern today?

USER: I am looking for a flight from OAK to DCA, can you help me in booking?

ASSISTANT: Ok, please can I know the dates of your journey?

USER: Sure, my planned travel dates are Jan 17 and Jan 19.

ASSISTANT: Ok, may I know your specification you are looking for?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Ok, there is a flight ticket available with 1 connection limit and airfare is 100 for a class economy. Can I book a flight 1021?

USER: That's fine, please proceed in booking.

ASSISTANT: Ok, the flight ticket is booked and the airlines is Spirit. Thank you for choosing our agency, have a safe journey.

USER: Thank you for your service.