You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket from OAK to DCA. Could you help me in booking?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are from Dec 10 - 12.

ASSISTANT: May I know your connection limit?

USER: I prefer for connecting flight.

ASSISTANT: Is there any class preference for you?

USER: I prefer for economy class.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: We found an airline: JetBlue, flight number: 1020 and price is 300 with one connection. Shall I proceed to booking?

USER: Yes, please proceed.

ASSISTANT: Your good name please.

USER: David Taylor here.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.