German phrase
Hiermit bestätige ich ~.
Meaning
I hereby confirm ___
When to use it
A formal confirmation. Use it for dates, arrangements, or attendance in writing or polite speech.
Example dialogue
Hiermit bestätige ich unseren Termin morgen um 15 Uhr.
I hereby confirm our appointment tomorrow at 3 p.m.
Alles klar, danke.
All right, thank you.