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

ASSISTANT: Hello, how may I assist you?

USER: Can you book a ticket from DEN to JFK?

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

USER: I am planning to leave by 12/26 and return back on 12/28.

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

USER: Make sure that connection limit is 1.

ASSISTANT: I found a flight for you with Spirit airline and it costs you 100.

USER: Yes, you can go ahead.

ASSISTANT: Your flight has been booked with 1003 flight number.

USER: Thank you.

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

USER: You are welcome.