You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you for today?

USER: Scott Brown here. I need to attend a business meeting at Detroit, can you please help me in booking a flight ticket from CLT to DTW?

ASSISTANT: Sure, I will help you with that Scott. Can you please provide your planned dates of journey?

USER: Sure, my trip dates are from 02/19 to 02/21.

ASSISTANT: We regret to inform you that there are no flights moving to your region with your planned dates of travelling.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: You are welcome, thank you for reaching out here.