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4.Atty. And Mrs. Rivera are rich and powerful. They love travelling to different countries. They booked round-trip business class tickets for the Magnificent AsianAirlines. On their return flight, Magnificent Asian Airlines upgraded their seats to first class without their consent because of overbooking. They protested to remain in the economy class so that they could eat their favorite ramyeon meal which was being served only in economy. They also said that they do not enjoy the atmosphere in first class and so refused the Airlines' offer. Feeling ashamed, they had no choice but to take the flight at the first class section. Upon their return to Cebu, they demanded a written apology from the Airlines. When it went unheeded, the couple sued Magnificent Asian Airlines for breach of contract. Magnificent Asian Airlines reasoned that there is no breach when in fact, they have upgraded the couple into first class seats in the plane. Who is correct? Give reasons. 5. Cindy sold to David shares of stock of a corporation engaged in tourism, without prior approval of the Ministry of Tourism as required by its Rules and Regulations promulgated pursuant to Presidential Decree No. 189 creating the former Department of Tourism. The purpose of the requirement is to ensure that only those persons and entities who are fit and responsible should engage in tour operation business. Is the sale void