You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am looking for a flight from AUS to PHL, can you please help me booking?

ASSISTANT: Sure, may I know your travel dates please?

USER: My travelling dates are Aug 01 and Aug 03.

ASSISTANT: Do you have any requirements?

USER: I want to return in afternoon.

ASSISTANT: Can you mention your name to proceed further?

USER: My name is Jacob Green.

ASSISTANT: Sorry, no flights found as per your requirement.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for contacting us.