You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please guide me in finding a flight from DTW to DEN?

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

USER: My trip dates will be Nov 16th to Nov 18th.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Is there any class preference?

USER: No, thank you for asking.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Please forward your name.

USER: I am Dennis Jackson.

ASSISTANT: There are no flights found on your specified trip dates.

USER: No problem, thank you.

ASSISTANT: Thank you for availing us.