Formal — to staff
Convenience · Store · Service
すみません、この千円札を百円玉に両替できますか?ロッカーで使いたくて。 — Excuse me, could you exchange this 1000 yen bill for 100 yen coins? I want to use them for a locker. (Convenience · Store · Service, Formal — to staff, JLPT N4)
You
すみません、この千円札を百円玉に両替できますか?ロッカーで使いたくて。
すみません、このせんえんさつをひゃくえんたまにりょうがえできますか?ロッカーでつかいたくて。
Excuse me, could you exchange this 1000 yen bill for 100 yen coins? I want to use them for a locker.
Romaji: Sumimasen, kono sen-en-satsu o hyaku-en-dama ni ryōgae dekimasu ka? Rokkaa de tsukaitakute. / Reply Romaji: Hai, shōshō omachi kudasai. Hyaku-en-dama o jū-mai desu ne.
Reply
はい、少々お待ちください。百円玉を10枚ですね。
はい、しょうしょうおまちください。ひゃくえんたまを10まいですね。
Yes, please wait a moment. Ten 100 yen coins, right?
Gesture & etiquette
Hold out the bill.
Avoid asking for excessive change or making it a regular habit without purchasing anything. It's generally accepted for small amounts for practical reasons like lockers or vending machines.