You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: James Rodriguez here.

ASSISTANT: How may I assist you?

USER: Can you please check for the flights for my business trip from DTW to AUS?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My journey dates are from Jan 21 to Jan 23.

ASSISTANT: May I know your depart time?

USER: I need depart time in evening.

ASSISTANT: Do you need a direct flight for your trip?

USER: Yes, please check for direct flight.

ASSISTANT: Do you have any preferences?

USER: No, thanks for asking.

ASSISTANT: James Rodriguez, no flights has been found on your requirements.

USER: Oh! That's fine. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.