You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Can you reserve me a ticket from CLT to AUS?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: My trip dates are Jan 24 to 26.

ASSISTANT: Do you need break in between your journey?

USER: I need a single connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: Please ensure that my depart must be in afternoon.

ASSISTANT: May I know your good name please?

USER: Karen Harris here.

ASSISTANT: Sorry, no flights available for you on those dates.