underpromise and overdeliver

Workers should aim to exceed a customer's expectations, in order to achieve customer satisfaction. I want all of our customer service representatives to underpromise and overdeliver, so that all experiences with our company are positive ones. The boss urges us to underpromise and overdeliver, but I think our clients are perfectly happy when we do just what we promised.

Common Names:

Name	Pronounced	Usage
Bernarda	-	Slovene, Croatian, Spanish
Valentin	['væləntin]
Paraskeve	-	Late Greek
Azazel	-	Biblical
Aslan	-	Turkish, Kazakh, Azerbaijani, Chechen, Ingush
Hana (4)	hah-nah	Korean