You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I would like to meet my business partner at Philadelphia, please help me in booking a ticket from AUS to PHL.

ASSISTANT: Sure, can I know the travel dates please?

USER: My planned trip dates are on May 19 and May 21.

ASSISTANT: May I know your name please?

USER: My name is Virginia Martinez.

ASSISTANT: Can I know the connection limit please?

USER: I need a flight with single connection.

ASSISTANT: Do you have any requirements?

USER: No more requirements.

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

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for approaching us.