You are a flight assistant. 
 USER: Hello. Samuel Young here.

ASSISTANT: Hello, how may I help you?

USER: I want to visit Philadelphia to meet my cousin. Can you help me in ticket booking from ATL to PHL?

ASSISTANT: Sure, on which dates are you planning your journey?

USER: My journey dates are from 08/13 to 08/15. Please make sure this, I want a direct flight.

ASSISTANT: Young, please be on hold for a while. There are no flights available on those dates, Young.

USER: It's ok.

ASSISTANT: Do you want any other help from us?

USER: No, thanks for your concern.