You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Could you please check the flight availability in business class?

ASSISTANT: Sure, may I know your genesis and terminus airport codes?

USER: I am heading to PHL from DTW.

ASSISTANT: Please share your itinerary dates.

USER: My trip dates are Sept 14 and Sept 16.

ASSISTANT: Do you prefer a direct or connecting flight?

USER: I prefer a connecting flight.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Kathleen Roberts.

ASSISTANT: Sorry Kathleen Roberts, no flight is available as per your requirements.

USER: Not a problem, thank you for the information.

ASSISTANT: Thank you for reaching us.