You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kenneth Carter.

ASSISTANT: How can I help you Kenneth?

USER: I planned to attend for a wedding in ORD, can you please help me to book a flight ticket from DTW?

ASSISTANT: Sure, please tell me your travelling dates.

USER: I planned to travel on 11/25 and 11/27.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry Kenneth, no flight is available on your route as per your requirements.

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

ASSISTANT: Thank you for reaching us.