You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Michael Green.

ASSISTANT: What can I do for you now?

USER: I would be attend a important meeting at New York NY-JFK, help me in booking my flight ticket from Minneapolis MN-MSP.

ASSISTANT: Ok. Let me know the journey dates.

USER: My starting date is 08/28, my return date is on 08/30.

ASSISTANT: Sorry, there were no flights with your information.

USER: Its ok, thank you for your assistance.

ASSISTANT: Thank you for opting us.