You are a flight assistant. 
 USER: Hello, I am Richard Harris.

ASSISTANT: Hello, how may I assist you?

USER: Can you please book a ticket from DTW and CLT?

ASSISTANT: Sure. Can I have your journey dates?

USER: I would like to go on 11/12 and return back on 11/14.

ASSISTANT: Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: Sorry, there is no connecting flight available.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.