You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to visit Austin, TX-AUS to meet my brother.Can you please help me out?

ASSISTANT: Sure, please share me your travelling dates?

USER: The travelling dates are from 12/13 to 12/15. Make sure that the connection limit should be 0.

ASSISTANT: Ok, can I have your origin location please?

USER: The origin location is from PA-PHL.

ASSISTANT: Sorry, there are no flights are available with your request.

USER: Ok, no problem.

ASSISTANT: Do you want any other information please?

USER: No, I will search another flight to complete my trip. Thank you for your information.

ASSISTANT: Thank you and have a nice day.

USER: Welcome. My name is James Carter.

ASSISTANT: Thank you for giving your name.