Comment 4 for bug 383670

Here you go. After looking at the output, I'm guessing you wanted the second command to be lightning-extension, not just "lightning" so I included both below in addition to the output for calendar-google-provider.

apt-cache policy calendar-google-provider
calendar-google-provider:
  Installed: 0.9+nobinonly-0ubuntu2
  Candidate: 0.9+nobinonly-0ubuntu2
  Version table:
 *** 0.9+nobinonly-0ubuntu2 0
        500 http://us.archive.ubuntu.com jaunty/universe Packages
        100 /var/lib/dpkg/status

apt-cache policy lightning
lightning:
  Installed: (none)
  Candidate: 1.2-6
  Version table:
     1.2-6 0
        500 http://us.archive.ubuntu.com jaunty/universe Packages

apt-cache policy lightning-extension
lightning-extension:
  Installed: 0.9+nobinonly-0ubuntu2
  Candidate: 0.9+nobinonly-0ubuntu2
  Version table:
 *** 0.9+nobinonly-0ubuntu2 0
        500 http://us.archive.ubuntu.com jaunty/universe Packages
        100 /var/lib/dpkg/status