You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Please book a flight ticket from AUS to PHL?

ASSISTANT: May I know your name please?

USER: I am Jack Lee.

ASSISTANT: Tell me your travel dates please?

USER: My journey dates are Dec 22 and Dec 24.

ASSISTANT: Are you looking for a stopover in your journey?

USER: I need a connecting flight.

ASSISTANT: Any other preferences?

USER: I prefer a business class.

ASSISTANT: Thanks for your patience. I have found Jet blue airlines which is a stopover flight.

USER: Please proceed with my booking.

ASSISTANT: Yes, I have confirmed your flight ticket in flight number 1028.

USER: Thank you for your help.

ASSISTANT: Thank you.