You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I would like to book a flight ticket from ATL to meet my old friend to start a new business, can you help me in booking?

ASSISTANT: Sure, let me know your travel dates please?

USER: 04/03 and 04/05 are my planned travelling dates.

ASSISTANT: Could you please share me your destination airport code?

USER: My destination airport code is AUS.

ASSISTANT: May I know your connection limit?

USER: I am happy with connecting flight.

ASSISTANT: Ok, is there any class preference?

USER: I want to fly with the business class ticket.

ASSISTANT: Do you have any airline preference?

USER: No more specifications.

ASSISTANT: Can I know your name please?

USER: I am Jacob Lee.

ASSISTANT: Sorry to inform you that there are no flight services available on your given dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thanks for contacting us.