You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

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

ASSISTANT: May I know your travel dates?

USER: My travel dates are Nov 30 and Dec 02.

ASSISTANT: Do you prefer connecting flight?

USER: Yes, I prefer a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I want to depart in the afternoon.

ASSISTANT: Please mention your travelling airport codes?

USER: I am heading to DEN from SFO.

ASSISTANT: May I know your good name?

USER: I am Justin Evans.

ASSISTANT: Sorry, we found no flights on your trip dates.

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

ASSISTANT: Thank you for reaching us.