If the car has a timing belt, the leaking water pump will wreck the belt. You should probably replace it too. Maybe. Some cars, not. If it's a Honda, probably. If it's a new Honda, some have chains. So no. If it's really old, sell it.
If it's a V-8 Camaro, do it yourself for cheap, and stop going to the Honda dealer.
If it's a Toyota Corolla from 1998-, it's got a timing chain, so no worries on that end, but if the pump is leaking replace it.
If it's a pre 1998 Porsche 911, they're scamming you, as it has NO water pump. Rube!
Hey! Why would ANYONE take their Porsche to a Honda dealer? MORON! To hell with it, I'm not helping anymore. People with Porsches should learn to look after their own car and avoid Honda dealers.