On July 15 while at a cocktail party, given in the house of their mutual friend Kim, Samantha was having a conversation with Wiley, an interior designer. Wiley mentioned that he had designed the kitchen of the house to which Samantha responded, "I love what you have done. I am going to hire you to design a new kitchen for me that looks exactly like Kim's kitchen and I would need it completed within the next two months, starting on. July 30". Before a binding contract could be agreed to, Wiley began to spend money to purchase new wallpaper, paint, cabinets, and high-end kitchen appliances. On July 29, the day before the renovations were to begin, Samantha called Wiley and informed him that she would no longer need his interior designer services. Wiley wants to sue Samantha for the costs of everything that he purchased. On what legal doctrine could Wiley base his claim? Fully explain