You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, I will help you with that. May I know your travelling dates, please?

USER: Sure, my travel dates are from Nov 11 to Nov 13.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight.

ASSISTANT: May I know your name please?

USER: Myself Ryan Green.

ASSISTANT: There are no flight found on this route as per your travel dates.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us, have a great day.