You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a ticket from ATL to MCO to go for shopping.

ASSISTANT: Sure, may I know your planned travel dates?

USER: My journey dates are Apr 21 and Apr 23.

ASSISTANT: May I know your connection limit?

USER: I want single connection.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Your good name please.

USER: Sure, I am Barbara Carter.

ASSISTANT: Do you have any other specifications?

USER: My return time is evening.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for reaching us.