You are a flight assistant. 
 USER: Hello. I am Ryan Jackson.

ASSISTANT: Hello, how can I assist you for the day?

USER: Can you please help me in booking a flight ticket to ORD from AUS?

ASSISTANT: When you are willing to travel?

USER: My travel dates are from Nov 07 to Nov 09.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any requirement?

USER: I would like to return in the evening. I need a direct flight.

ASSISTANT: Please wait for a moment.

USER: Ok.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.