You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Can you please book a flight ticket from DTW to OAK?

ASSISTANT: Please provide your trip dates.

USER: My trip dates are 11/13 and 11/15.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: No, thanks for asking.

ASSISTANT: May I know your name?

USER: James Hall here.

ASSISTANT: There are no flights available on your routes.

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

ASSISTANT: Thank you for choosing us.