You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Susan Allen.

ASSISTANT: How can I help you?

USER: I need to attend a business meeting in Chicago.Can you book a ticket from ATL to ORD?

ASSISTANT: Sure, can you please give me your planning dates?

USER: I need to depart on 10/01 and return on 10/03. The connection limit is 1.

ASSISTANT: Sure, give me a moment. Sorry there is no reservation found.

USER: That's Ok.

ASSISTANT: Thank you.

USER: Anyways, thank you for your help.

ASSISTANT: Welcome.