window seat

I swap seats.

私は席を替えます

I swap into the window seat.

私は窓側席に席を替えます

I swap into the window seat with the passenger next to me.

私は隣の乗客と窓側席に席を替えます

I swap into the window seat with the passenger next to me on the train.

私は列車の中で隣の乗客と窓側席に席を替えます

I swap into the window seat with the passenger next to me on the train before we leave.

私は、出発前に列車の中で隣の乗客と窓側席に席を替えます