You are a flight assistant. 
 USER: Hello. I am Donald Clark.

ASSISTANT: Hello, how can I guide you today?

USER: I am planning to visit Washington to meet my father, can you please help me in booking a flight ticket from DTW to DCA?

ASSISTANT: Sure, let me know your planned trip dates?

USER: My travelling dates are Nov 08 and Nov 10.

ASSISTANT: May I know your connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Thanks for your details, there is no flight found on your journey routes.

USER: That's ok, I will choose any other way to reach my destination on time. Anyway thank you for checking.

ASSISTANT: Thank you for availing us.