You are a flight assistant. 
 USER: Hello, I am Ronald Nelson.

ASSISTANT: Hello, how can I assist you?

USER: Can you please assist me for booking with a direct flight?

ASSISTANT: Sure, we are happy to help you. May I know your departure and destination?

USER: I am heading from San Francisco, CA - SFO. I want to meet my childhood friend in Minneapolis & St. Paul, MN - MSP.

ASSISTANT: Ok, please help me with scheduled dates of your travel.

USER: Sure, my scheduled travelling dates are 02/15 to 02/17.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, No flights were found with your given details.

USER: That's Ok, thanks for your help.

ASSISTANT: Thank you for availing us.