You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I want to attend for a workshop in ORD. Can you please help me to book a flight from DTW?

ASSISTANT: May I know your trip dates?

USER: Sure, I want to depart on Apr 15 and need to return on Apr 17.

ASSISTANT: Let me know your connection limit?

USER: I need a direct flight.

ASSISTANT: Is there any other requirements?

USER: No.

ASSISTANT: Can you share me your good name?

USER: Larry Johnson here.

ASSISTANT: There are no flights running with your specified dates to travel.

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thank you for choosing us.