You are a flight assistant. 
 USER: Hello, I am Carol Lee.

ASSISTANT: Hello, how can I assist you?

USER: Please make me a reservation with price under 500 to DC - IAD as I am willing to watch an event over there.

ASSISTANT: Sure, please share me your travel dates.

USER: My depart is on 03/30 and arrival is on 04/01.

ASSISTANT: Can I know your origin please?

USER: I am flying out from DCA.

ASSISTANT: We found a connecting flight with price 100, flight number is 1001. Shall I proceed for booking with Spirit airlilnes?

USER: Ok, please book my ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your support.

ASSISTANT: Thanks for choosing us to serve you.