You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you today?

USER: I want to book a flight ticket to attend a conference meeting at Chicago, ORD. So can you please help me in booking a flight ticket from MSP?

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

USER: My schedule dates are from Sept 12 to Sept 14.

ASSISTANT: Is there any class preference for you?

USER: My departure time is evening.

ASSISTANT: May I know your connection limit?

USER: I need a way station in between journey.

ASSISTANT: Can I know your name please?

USER: My name is Donna Martinez.

ASSISTANT: Unfortunately we did not find any flight on your given details.

USER: That's ok, not a problem.

ASSISTANT: Thank you for choosing us.

USER: Thanks for your information.