To say that you have a right to something implies that someone else (a person, organization, or government)has a duty or obligation to provide you with that thing.

Right

A claim or entitlement justified by law, custom, or morality.

Duty

What one ought to do, whether by virtue of his or her place or position in society (in Plato or Aristotle, for example) or by virtue of rational moral principles (as in Kant).

Obligation

A duty or commitment that one is bound to by law, promise, moral principles, or social custom.