A phone order is a conversation, and conversations drift. The caller changes a size halfway through, adds a drink, forgets the name on the second pizza. The agent keeps up, but the kitchen should never have to trust that it did.
The text
The moment the caller says that is everything, the order goes to their phone as a text: every item with its size and its changes, the subtotal, the tax, the total, and the pickup time. It reads like a receipt because it is one. The caller looks at it the way they would look at a bag at the counter.
The YES
Reply YES, and the order is confirmed: it lands on the kitchen screen with a number and the kitchen gets its ticket. Reply with a change, "make it two lemonades", "no onions on the pizza", and the order comes back re-priced for another YES. Ask a question, "do you have gluten-free crust", and the answer comes back with the order under it. Reply STOP, and nothing was sent anywhere.
The same brain reads every reply, in English, Spanish or French, and prices every change against the menu. A YES in Spanish is a YES.
Why not just trust the call
Because the kitchen cannot un-make a pizza. A wrong order is thirty dollars of food and a customer who does not call again. The text costs the caller ten seconds and gives the kitchen an order the customer has read and agreed to. Three rounds of changes and the line hands it to a person, because at that point a phone call is faster than a fourth text.
What the kitchen sees
A confirmed order, and only a confirmed order: the tile with the name, the pickup time, the items in big type, the changes in red, the note in yellow. Start it, bump it when it is up, print it if you want paper. The log beside the board keeps the day.