How can you get scizor?

In heartgold and soulsilver, when you first are on the boat between Olivine City and Vermillion City, and there is the man who has lost his daughter or granddaughter. If you find her (she is downstairs) he gives you a Metal Coat. Make a Scyther hold the Metal Coat and trade the Scyther. On arrival, Scyther should evolve into a Scizor.