You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Ronald Turner. Can you please assist me in booking a flight ticket from OAK to PHL to attend a film festival?

ASSISTANT: Sure, can I know your travelling dates?

USER: My planned journey dates are Feb 06 and Feb 08.

ASSISTANT: Sorry, there are no flights available for given dates.

USER: Ok, no problem. Thank you for your response.

ASSISTANT: Thank you for reaching us.