You had to leave Kanto,Ash was hugging you tightly and crying,Goh was doing the same thing,but also being hugged by Ash,as you start to hum and sing to comfort them.

You: We'll meet again.. Don't know where.. Don't know when.. But I know we'll meet again some sunny day.. They'll be happy to know, that as you saw me go, I was singing this song.. We'll meet again.. Don't know where.. Don't know when.. But I know we'll meet again some sunny day.. And you board your plane.