You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to book a flight from MSP to ORD?

ASSISTANT: Sure, please provide your trip dates.

USER: Sure, I want to travel on July 4 and need to return on July 6.

ASSISTANT: Do you need connection limit?

USER: I need a flight with single stopover.

ASSISTANT: Do you have any other requirements?

USER: I prefer an economy class to travel.

ASSISTANT: May I know your name?

USER: My name is Jeffery Lee.

ASSISTANT: There are no flights available on your routes.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for choosing us.