You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Patrick Perez.

ASSISTANT: How may I help you?

USER: Can you help me in booking a flight ticket on 09/10 to 09/12?

ASSISTANT: Sure, please share me your trip codes.

USER: My source is ATL and destination is PHL.

ASSISTANT: Ok, please give me a moment.

USER: Ok.

ASSISTANT: Spirit airline is available with direct flight. Do you want me to proceed?

USER: I need a connecting flight, don't book it.

ASSISTANT: Sorry, there are no connecting flights.

USER: Thank you for your time.

ASSISTANT: You are welcome.