You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I want to visit my home town. Can you book a flight from AUS-PHL?

ASSISTANT: Sure, we are here to help you. Can you please let me know your travelling dates?

USER: My planned travel dates are 03/21 and 03/23.

ASSISTANT: Do you have any connection limit for this trip?

USER: I want direct flight only.

ASSISTANT: Do you have any other preference?

USER: No more, thank you.

ASSISTANT: May I know your name please to proceed further?

USER: Rebecca Evans here.

ASSISTANT: Sorry to inform you that there are no flight services available on your given dates.

USER: No issues, thank you for the information.

ASSISTANT: Thanks for contacting us.