You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Could you help me in booking a ticket from DTW to ATL.

ASSISTANT: Let me know your travel dates.

USER: My travel dates are as follows Feb 16 and Feb 18.

ASSISTANT: Is there any connection limit?

USER: I would like to travel by direct flight.

ASSISTANT: Do you have any preference?

USER: No. Thank you for asking.

ASSISTANT: Can I know your name?

USER: Ronald Collins.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: No issue, thank you for your time.

ASSISTANT: Thank you.