You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I planned to meet my friend in JFK, can you please help me to book a flight ticket from DTW?

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

USER: I prefer to travel on Nov 3 and Nov 5.

ASSISTANT: May I know your connection limit?

USER: I would like to travel in a connecting flight.

ASSISTANT: Do you need any other preference?

USER: No.

ASSISTANT: Can I know your name please?

USER: I am Benjamin Mitchell.

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

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you for contacting us.