You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I render you today?

USER: Could you please help me to book a flight ticket from JFK to meet my old friend to start a new business in SFO?

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

USER: Sure, I am planning to start on 09/21 and my return date will be on 09/23.

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: No more specifications.

ASSISTANT: May I know your good name please?

USER: I am James Hill.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

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

USER: That's ok, not an issue. Thank you for your information.

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