q.1 : when i buy Suica&NEx card to take Narita Express to YOKOHAMA . i must to reserved a seat? is it necessary ?
q.2 : if i buy Suica&NEx card and i take Narita Express to YOKOHAMA . i must tranfer a train 1 time? right? but this web (http://www.japan-guide.com/e/e2027.html) told me if i take Narita Express to YOKOHAMA , i don't tranfer. Please let me know the answer.