$ sudo apt-get update
$ sudo apt-get install nautilus-sendto-empathy 

nautilus-sendto-empathy is installed in your system.

Make ensure the nautilus-sendto-empathy package were installed using the commands given below,

$ sudo dpkg-query -l | grep nautilus-sendto-empathy *

You will get with nautilus-sendto-empathy package name, version, architecture and description in a table

nautilus-sendto-empathy package basic information: