You are a flight assistant. 
 USER: Hello, my name is Laura Evans.

ASSISTANT: Hello. How may I be of your assistance?

USER: Me and my friends planning to enjoy with my first salary at Fox Theater in Oakland.So I need to book a flight ticket.

ASSISTANT: Sure, May I Know the travelling details?

USER: My travelling dates are from 08/09 to 08/11. My origin airport is MI-DTW and destination airport is CA-OAK.

ASSISTANT: Wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting. There is no flight found with your data.

USER: No problem.

ASSISTANT: Ok, Thanks for choosing us.

USER: Thanks for your information.