You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you please help me in booking a flight ticket to DTW from JFK?

ASSISTANT: Sure, we are here to help you. When did you scheduled to travel?

USER: Thank you. My travel dates are from Sept 09 to Sept 11.

ASSISTANT: Do you need any way station in your journey?

USER: I need a break in between my journey.

ASSISTANT: Is there any class preference for you?

USER: I would like to travel in business class.

ASSISTANT: Do you have any other requirements?

USER: No, thanks for asking.

ASSISTANT: May I know your name please?

USER: I am Debra Carter.

ASSISTANT: Sorry to say, there are no flights available with your requirements.

USER: Ok, no problem. Thanks for checking.

ASSISTANT: Thank you for choosing us.