John Walker was an American Airlines passenger on a flight from Rome to Miami.During the flight he was offered a drink by the flight attendant.John requested orange juice.However, as a result of a mix-up, he was accidentally served a mixture of orange juice and vodka.John alleged that the alcohol caused him to suffer damage to his heart to due to a pre-existing condition.No question exists that this occurred on an international flight.No question exists that John had a pre-existing heart condition.The question facing the U.S. District Court is whether the incident qualifies as an "accident" under the Warsaw Convention.You are the Judge's legal assistant.Please write brief using case law, the pertinent parts of the Warsaw Convention to determine whether or not this is an accident.