You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me to book my ticket from ATL to AUS?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My trip dates are Feb 4 and Feb 6 respectively.

ASSISTANT: Do you have any other specifications?

USER: I prefer for direct flight to travel.

ASSISTANT: Give me a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that there are no flights found on your requested criteria.

USER: No issue.

ASSISTANT: Can I know your name for documentation?

USER: Donald Baker here.

ASSISTANT: Thank you for reaching us.

USER: Thank you.