Susan, a wealthy widow, invited an acquaintance, John, to her home for a steak dinner on a specific date and at a specific time. John told Susan that he would be delighted to come to dinner and, eager to impress Susan, spent lavishly in preparing for the evening. His purchases included a new blazer, new shoes, an expensive floral arrangement, and champagne for Susan. At the agreed upon date and time, John arrived at Susan's house only to find that she had left for the evening. John went home and sent Susan an email saying that he came for dinner but she was not home. The next day, Susan sent John an email saying that she was sorry that she had forgotten the dinner and had gone to the theater with friends. Assume that the facts given are admitted and not in dispute. Did Susan and John have a contract? Why, or why not?