You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you book a flight ticket from CLT to LAS?

ASSISTANT: Sure, let me know your travelling dates?

USER: I will start on Dec, 9 and return back on Dec, 11.

ASSISTANT: Do you have any connection limit?

USER: I prefer to connecting flight.

ASSISTANT: Is there any other preferences?

USER: I need to depart at evening time.

ASSISTANT: May I know your name?

USER: Laura Taylor here.

ASSISTANT: Thanks for your details, there is no flight found on your desired journey dates.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for availing us.