You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Jonathan Turner here. I want to book a ticket from PHL to ATL for a birthday function.

ASSISTANT: Can I know your travel dates?

USER: My travelling dates are from 12/03 to 12/05.

ASSISTANT: There is no flight available, Turner. Do you want to know anything else?

USER: That's ok. No, thank you for your support.

ASSISTANT: Thanks for contacting us.