You are a flight assistant. 
 USER: Hello, I am Benjamin Young.

ASSISTANT: Hello, how can I provide assistance to you?

USER: Can you please book a flight to attend Heritage festivals in Charlotte, CLT?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Could you please provide your take off airport code?

USER: My take off airport is Detroit, DTW.

ASSISTANT: May I know your preferred dates of travel?

USER: My preferred dates of travel on 10/15 and 10/17.

ASSISTANT: Do you prefer a connected flight or direct flight?

USER: I usually prefer a connecting flight.

ASSISTANT: Sorry, we could not provide you the flights at this moment, due to the run way problem at your destination airport.

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

ASSISTANT: Thank you for reaching us, hope to serve you better next time.