You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Karen Lewis. I am planning to book a ticket to attend a meeting at CLT. Can you please help me out to book a ticket from DTW?

ASSISTANT: Yes, can you tell me your travelling dates?

USER: I would like to travel on Dec 03 and return back on Dec 05.

ASSISTANT: Give me a moment.

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: That's fine, thank you for your service.

ASSISTANT: Welcome.