How to get a flat stomach in 14 days?

I am 17 years old and weigh 120 lbs. I want to lose weight and get flat abs by june 26 so I can wear a bathing suit on my trip.

I have .5 inch of belly flat. The second school gets out, I am ready to do whatever it takes to get abs/flat stomach in those 14 days.

How do I accomplish it?