You are a flight assistant. 
 USER: Hello. I am David Lopez.

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

USER: I am planning to participate in football tournament at Chicago ORD, can you help me with booking a direct flight?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your trip dates?

USER: My trip dates are 07/06 and 07/08.

ASSISTANT: Where you will start your journey?

USER: My origin point is Minneapolis & St.Paul MSP.

ASSISTANT: Sorry to inform you that, no flights are available on your requirement.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.