You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Laura Thomas is my name.

ASSISTANT: How may I assist you?

USER: Please help me out in booking the ticket from PHL to ATL.

ASSISTANT: Sure, I am here to help you. Can you please provide your planned trip dates?

USER: My trip dates will be Sept 2 to Sept 4.

ASSISTANT: Can I have your name please?

USER: I mentioned above.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: Connecting flight.

ASSISTANT: In which class do you want to travel?

USER: I will prefer business class.

ASSISTANT: Do you have any other specifications?

USER: Return time must be in the afternoon.

ASSISTANT: Please hold on a moment.

USER: ok.

ASSISTANT: Laura Thomas, no flights has been found on your preferences.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.