You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me in booking a flight ticket from OAK to DTW?

ASSISTANT: Sure, I am here to help you. May I know your planned trip dates?

USER: Sure, my travel dates are from July 10 to July 12.

ASSISTANT: Do you have any connection limit preference?

USER: I would prefer a direct flight for my trip.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Can you help me with your name please?

USER: Myself Samuel Harris.

ASSISTANT: Thank you for providing the details, but unfortunately there is no direct flight available on this route.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.