You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Raymond Allen. I would like to spend my holidays in PHL, can you please book a flight from AUS?

ASSISTANT: Sure, may I know your journey dates?

USER: Ok, my journey dates are 11/25 - 11/27.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I need a halt.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no problem. Thank you for the service.

ASSISTANT: Thank you for reaching us.