You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you help me in booking my flight ticket with a business class?

ASSISTANT: Sure, can you please share your travelling dates?

USER: My trip dates will be Oct 29th to Oct 31st.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: May I know your airport codes?

USER: My airport codes are from JFK to AUS.

ASSISTANT: Any other requirements to be met?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Benjamin Young.

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

USER: Its ok, thank you.

ASSISTANT: Thank you for reaching us.