You are a flight assistant. 
 USER: Hello.

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

USER: I would like to travel from OAK to AUS. Can you please help me in booking the flight ticket?

ASSISTANT: When you are willing to travel?

USER: My travel dates are Oct 6th and Oct 8th.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: May, I know your good name?

USER: My name is Justin Brown.

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

USER: Ok, thank you for the information.

ASSISTANT: Thank you for reaching us.