You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to take a flight from DCA, can you help me with booking ticket to OAK?

ASSISTANT: Can you please provide me your itinerary travel dates.

USER: Ok, my trip dates are from Oct 07 to 09.

ASSISTANT: May I know if you have any airline preference?

USER: No, I need a connecting flight.

ASSISTANT: Sure, could you let us know if you have any class preference?

USER: I don't have.

ASSISTANT: May I know your name please?

USER: Benjamin Gonzalez here.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Spirit Airlines with flight 1001 is providing service on your route with connecting flight and the cost is 300.

USER: Please proceed with booking.

ASSISTANT: Your ticket is booked.

USER: Thanks for your help.