You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to book a ticket from PHL to AUS, can you please help me out?

ASSISTANT: Sure, may I know your trip dates?

USER: I am travelling on these dates Oct 3rd and 5th.

ASSISTANT: Can I know you connection limit?

USER: I need  a direct flight.

ASSISTANT: Do you have any other requirements?

USER: I don't have any other requirements.

ASSISTANT: May I know your name, please?

USER: Kevin Martinez here.

ASSISTANT: Sorry, there are no fights available.

USER: Ok no problem, thank you for your services.

ASSISTANT: Thank you for reaching us.