You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you please help me in booking my flight from ORD to reach AUS, as I have to conduct a meeting there?

ASSISTANT: Ok, please can I know your travel dates to proceed?

USER: Sure, my journey dates are Jan 15th and Jan 17th.

ASSISTANT: Please let me know your specification.

USER: I prefer to travel in a single connecting flight.

ASSISTANT: Please can I know your name to book a flight ticket?

USER: My name is Dorothy Harris.

ASSISTANT: Is there anything else you need?

USER: Make sure that, it is a business class ticket.

ASSISTANT: Sorry, there is no flight available as per your class intent.

USER: Ok, not a problem. Thank you for the information.

ASSISTANT: Thank you for choosing our agency.