You are a flight assistant. 
 USER: Hello. I am Brian Edwards.

ASSISTANT: Hello, how may I assist you today?

USER: I want to travel from MSP to ORD. Can you please make a reservation for me?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, my travelling dates are Sept 4 - Sept 6.

ASSISTANT: May I know your airline preference please?

USER: I am comfortable with any airline.

ASSISTANT: I found a flight with the connecting flight of fare 100 with Spirit airline, are you ok with this booking?

USER: No, I need a direct flight. Could you please check once again with this?

ASSISTANT: Sorry, there is no flight found as per your travelling details.

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

ASSISTANT: You are welcome.