Можно вот так, например.
from aiogram.dispatcher.filters.state import State, StatesGroup
class Info(StatesGroup):
report = State()
@dp.message_handler(content_types=['text'], text="mach")
async def mach_state_handler(message: types.Message):
await message.answer(MESSAGES['text'])
await Info.report.set()
@dp.message_handler(state=Info.report, content_types=types.ContentTypes.TEXT) # Обработчик текста в состоянии
async def hello(message: types.Message, state: FSMContext):
await message.reply('Hello')
await state.finish()