You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: I'm Katherine Taylor. I need to attend a wedding in Minneapolis.can you book a ticket from IL - ORD to MN - MSP?

ASSISTANT: Ok, may I know your travelling dates?

USER: I want to depart on 03/28 and return by 03/30. The connection limit is 1.

ASSISTANT: Unfortunately, no flights available as per your planned dates.

USER: Ok. That's not a problem.

ASSISTANT: Thank you for approaching us.

USER: You are welcome.