You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best serve you today?

USER: Can you please help me in booking the flight ticket from BOS to DTW?

ASSISTANT: When are you planning to make your journey?

USER: My travel dates are Mar 3 and Mar 5.

ASSISTANT: Is there any connection limit for you?

USER: Yes, I need a single connection flight.

ASSISTANT: May I know your name please?

USER: Susan Collins.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: Is there any other specifications for your journey?

USER: I would like to depart in the afternoon.

ASSISTANT: Sorry Susan Collins, based on your specifications we haven't found any flight in airline database.

USER: OK, thank you for the information.

ASSISTANT: Thanks for reaching us.