You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to book a flight from DTW to ATL?

ASSISTANT: Sure, let me know your trip dates please?

USER: My trip dates are Dec 15 and 17.

ASSISTANT: May I know your connection limit?

USER: I need a break in my journey.

ASSISTANT: Do you need any other preference?

USER: I want to depart in the evening time.

ASSISTANT: Can I know your name please?

USER: Charles Rodriguez here.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: Ok, thank you.

ASSISTANT: Thanks for contacting us.