You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Benjamin Robinson here. Can you please help me in booking my flight from ORD to reach DTW?

ASSISTANT: Sure, may I know your planned trip dates?

USER: Sure, my trip dates are Dec 24th and Dec 26th.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: May I know your arrival and depart timings?

USER: I need to return in the afternoon time only.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Sorry, there are no flights found on your specified routes.

USER: Ok, not a problem. Anyways, thank you.

ASSISTANT: Thank you for availing us.