we're going to have dinner
On va dîner chez mes parents samedi.
We're going to have dinner at my parents' house on Saturday.
On va dîner, mais on pourrait se voir bientôt.
We're going to dinner, but we could see each other soon.
— Il était Temps (2013)
Arrête de grignoter, on va dîner bientôt.
Stop snacking, we're going to have dinner soon.
Do you mean we’re going to have dinner?
— Moscou ne croit pas aux larmes (1980)