You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me in booking my flight ticket from AUS to OAK?

ASSISTANT: Sure, may I know your name please?

USER: Myself Ryan Jones.

ASSISTANT: May I know your travelling dates please?

USER: My travelling dates are from 10/26 to 10/28.

ASSISTANT: Is there any specific class preference for you?

USER: No.

ASSISTANT: May I know your preferable time for journey?

USER: My return time will be in the morning.

ASSISTANT: May I know your connection limit please?

USER: I need a single connecting flight.

ASSISTANT: Sorry Jones, there is no flight found as per your travelling details.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for reaching us.