You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Ruth Johnson here. I need to book a flight ticket from OAK to AUS. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, let me know your travelling dates.

USER: My travelling dates are from Mar 17 to Mar 19.

ASSISTANT: Please share your specifications.

USER: I need a connecting flight in my journey.

ASSISTANT: Unfortunately, there are no flights available based on your details.

USER: Ok, no problem. Anyway, thank you for the information.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your kind service.