You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Myself Catherine Martin. I want to meet my college friends at California. Could you please book a ticket from ATL to PHL?

ASSISTANT: Sure, I am here to help you. When you are willing to travel?

USER: Sure, my journey dates are from 08/08 to 08/10.

ASSISTANT: Just a moment.

USER: Ok.

ASSISTANT: Catherine sorry for inconvenience, no flights are available with your requirements.

USER: No more issues. Thank you for you information.

ASSISTANT: You are welcome.