You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking the flight ticket from PHL to ATL?

ASSISTANT: Sure, let me know your travelling dates.

USER: My planned dates of journey are Sept 15 and Sept 17.

ASSISTANT: May I know your connection limit?

USER: I prefer connecting flight for this trip.

ASSISTANT: Do you have any other specifications?

USER: No, thanks for asking.

ASSISTANT: May I know your name please?

USER: My name is Michelle Allen.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for opting us.