You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a ticket from DCA to SFO, can you help me?

ASSISTANT: Sure, may I know your planned travelling dates please?

USER: My travel dates are Feb 07 and 09.

ASSISTANT: May I know your good name please?

USER: I am Robert Lopez.

ASSISTANT: May I know your connection limit please?

USER: I prefer a connecting flight.

ASSISTANT: Southwest airline is providing a connecting flight of fare 200 with economy class, shall I proceed for booking?

USER: You can book it.

ASSISTANT: Your ticket has been confirmed with flight number 1015.

USER: Thank you for booking.

ASSISTANT: You are welcome.