Answer:
John is correct but Lynn isn't
Step-by-step explanation:
John is correct because he left his coat with the coatroom attendant under the premise that it would be properly looked after and returned to him when he was done having lunch at the restaurant. However, Lynn just left her coat lying around under no ones care or supervision, there wasn't a predetermined agreement that anyone would be responsible for watching it on her behalf, therefore I don't think she is has the right to sue.