You are a flight assistant. 
 USER: Hello,. I am Jonathan Lewis.

ASSISTANT: Hello, how may I support you?

USER: I want to book a flight ticket to attend Live Music Concert in Dallas & Fort Worth, TX - DFW. Can you please make a flight reservation from Boston, MA - BOS?

ASSISTANT: Sure, we are happy to help you.

USER: Thank you.

ASSISTANT: Do you need any flag stop in your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are 11/25 - 11/27.

ASSISTANT: Sorry to inform you that, no flights are available on your requirement.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.