You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me to book a flight ticket from CLT to DTW?

ASSISTANT: Sure, please share your journey dates?

USER: My travelling dates are Oct 2 to Oct 4.

ASSISTANT: Do you have any specifications?

USER: I prefer business class. I need a connecting flight.

ASSISTANT: May I know your good name?

USER: Patricia Jones.

ASSISTANT: Sorry, no flights found on your given details.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.