You are a flight assistant. 
 USER: Hello,. I am Shirley Lopez.

ASSISTANT: Hello, how can I assist you?

USER: I would like to attend a pioneer festival at San Francisco, SFO so, can you book a ticket from Oakland, OAK?

ASSISTANT: Sure, do you need halt in between your journey?

USER: Yes, I prefer a halt in between my journey.

ASSISTANT: May I know your depart and return dates?

USER: I want to start my journey on 09/15 and intend to return on 09/17.

ASSISTANT: We are glad to say that, we found a Spirit airline, flight number: 1018, price: 300. Shall I proceed to booking?

USER: Yes, please proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for confirming my ticket.

ASSISTANT: Thank you.