You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I want to fly from PHL to OAK. Can you book a ticket from that route?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: My planned travel dates are 07/28 and 07/30.

ASSISTANT: Do you prefer break in between your journey?

USER: I want a connecting flight with in the business class.

ASSISTANT: May I know your good name please?

USER: Sure, Sandra Adams here.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates with your given details.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for choosing us, have a nice day.