In addition to calling businesses, Google Assistant will also be able to order food for you soon. This was revealed by the company at its IO conference yesterday where the functionality was even demoed (video link at the bottom).
What's more, Assistant will even remember things you order frequently, making the whole ordering process easier for you.
Google has currently partnered with multiple outlets including Starbucks, Domino's, Dunkin Donuts, Doordash, 7-Eleven, Just Eat, Panera, and Applebee's, with the list set to grow in future.
Another gimmicky feature that I'll never use.