You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking a flight ticket from AUS to CLT?

ASSISTANT: Sure, I am here to help you. Could you please share your trip dates?

USER: I want to fly on Dec 12 and return on Dec 14.

ASSISTANT: May I know your name?

USER: Myself Timothy Anderson.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Is there any preferences?

USER: No.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for choosing us.