Lyric discussion by Demonya 

This must be about a Japanese woman who lives in America now and is lonely.

Japanese because of the 'matte kudasai', which means"'please wait'.Clearly she waits on the phone: 'she waits in the air'. Obviously she is trying to contact family or a friend in Japan. She is not a traveller like a tourist or a business woman: it is HER sad America.

Why she sleeps in a chair is not clear. Maybe she had to wait very long. But then this story must have happened a long time ago, when you had to wait on the phone at long distance calls. It may also explain why she gets an operator on the phone: 'please wait'. She is waiting quite some time: 'still by the window pane'.

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