You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am planning to book a flight ticket to DTW from ATL, can you please help me out?

ASSISTANT: Can I know your travelling dates? Please let me know your connection limit?

USER: Sure, my planned travelling dates are Oct 25 and Oct 27. I am looking for a flight with 1 connection.

ASSISTANT: Do you have any other preference?

USER: Yes, my return time must be in evening.

ASSISTANT: Please tell me your name?

USER: Sure, my name is David Rodriguez.

ASSISTANT: Sorry, no flights available on your route.

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

ASSISTANT: Thank you for reaching us.