You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My travel dates are from Dec 17 to Dec 19.

ASSISTANT: Ok, please mention your name.

USER: I am Alexander Wright.

ASSISTANT: Let me know your connection limit.

USER: I need a direct flight.

ASSISTANT: Do you have any specification?

USER: I would like to travel in business class.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: Ok, no problem. Thank you.

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