Originally Posted by VidaNaPraia

Why do you have to change your flight? Just get the correct PINK visa.

(Try Cuba Travel Services online. They are the current third party provider for American Airlines but serve other individuals as well. It should take just a day or two to receive the visa by mail in the US, from the time they receive your online form and credit card authorization for payment of U$85. )

Note that the US government is not going to ask any questions or ask for proof of the reason you choose for travel (of the 12), so just pick what serves you best. It will just be a box checked on the form, nothing more.