You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Please help me in booking a flight ticket from PHX to PHL.

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

USER: Oct, 17 and Oct, 19 are my trip dates.

ASSISTANT: Do you need break in between your journey?

USER: Yes, I need a break.

ASSISTANT: Please let me know if you have any other specifications.

USER: I need to travel in business class only.

ASSISTANT: May I know your good name please?

USER: Paul White here.

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

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.