You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how exactly I can serve you the best today?

USER: I need to travel from MSP to DEN, can you help me in doing that?

ASSISTANT: Sure, we are here to help you. Can you share me your trip dates?

USER: Thank you. My trip dates are Sep 09 to 11.

ASSISTANT: Do you need any flag stop in your journey?

USER: I need a connecting flight.

ASSISTANT: Is there any class preference for you?

USER: I prefer for business class.

ASSISTANT: Do you have any specific time to depart and arrive?

USER: No.

ASSISTANT: Any other requirements are there for you?

USER: No, please proceed with above details.

ASSISTANT: Sorry to inform you that, there are no flights available with your requirements.

USER: Ok, no issues.

ASSISTANT: For documentation, may I know your name please?

USER: Stephanie Carter here.

ASSISTANT: Thank you for availing us.

USER: Thank you for the information.