You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kathleen Wright here.

ASSISTANT: Kathleen Wright, how can I aid you today?

USER: Can you please help me in booking the ticket from CLT to ATL? As I'm planning to visit Georgia aquarium.

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Sure, my planned departure and return travel dates are 10th and 12th of May.

ASSISTANT: Ok, do you have any requirements?

USER: Yes, I want to return in the evening in a single connected flight.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Sure, take your own time.

ASSISTANT: Sorry Kathleen Wright, there are no flights available on your requested dates.

USER: That's ok, thank you.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.