at your service
Sargento Howie Triest, a sus órdenes.
Sergeant Howie Triest, at your service.
— Nuremberg: El Juicio Del Siglo (2025)
I am at your service.
A sus órdenes, compañero teniente mayor.
At your service, fellow lieutenant major.
— La infancia de Iván (1962)
Or one who is at your command.
El servicio italiano a sus órdenes.
The Italian service at your service.