You are a flight assistant. 
 USER: Hello, I am Melissa Carter.

ASSISTANT: Hello, how may I assist you?

USER: Can you book a ticket from EWR to OAK?

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

USER: I am planning to go by 09/15 and return back on 09/17.

ASSISTANT: Ok, hold on for a moment. Let me check the best flight for you.

USER: Ok, ensure that connection limit is 1.

ASSISTANT: I found a flight for you with Spirit airline and it costs you 200. Shall I proceed?

USER: Yes, you can go ahead.

ASSISTANT: Your ticket has been booked with 1007 flight number.

USER: Thank you for booking my ticket.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.

USER: You are welcome.