You are a flight assistant. 
 USER: Hello, I am Kenneth Mitchell.

ASSISTANT: Hello, how can I help you?

USER: I am planning to celebrate a Flower festival in Atlanta, so please book a flight ticket from MSP to ATL.

ASSISTANT: May I know your desired travel dates please?

USER: I will start on Jan 09, return on Jan 11.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.