You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Benjamin Lopez. I want to book a flight ticket from NC - CLT to CA - OAK. Please help me in booking a flight ticket.

ASSISTANT: Sure, I am here to help you in booking. Can you please mention your travelling dates?

USER: Thank you. My trip dates are from 08/06 to 08/08.

ASSISTANT: May I know your budget for flight ticket?

USER: I can afford up to 5000.

ASSISTANT: There is a flight available with an airline JetBlue of flight 1018 and fare is 200. Can I proceed with the booking?

USER: Please proceed for booking.

ASSISTANT: Your booking has been done.

USER: Thank you for booking.

ASSISTANT: Thank you.