currency exchange

I request it.

私は申し込みます

I request a currency exchange.

私は両替を申し込みます

I request a currency exchange at the bank counter.

私は銀行の窓口で両替を申し込みます

I request a currency exchange at the bank counter a week before we fly out.

私は出国の1週間前に銀行の窓口で両替を申し込みます

I request a currency exchange at the bank counter with my wife a week before we fly out.

私は妻と出国の1週間前に銀行の窓口で両替を申し込みます