De La Tour and Hochster entered into a contract in April under which De La Tour promised Hochster that, on June 1, 1852, Hochster would begin work as his "courier" (tour guide) during De La Tour's trip to Europe, which was begin on June 1.
On May 11, De La Tour informed Hochster by letter that he had changed his mind; he would not be going to Europe, would not need Hochster's services, and would not pay for them.
Assume not paying Hochster would be a material breach, then: