JSFiddle - React, Tailwind, and code Playground

HTML

<div class="cart">
  <input type="text" class="amount-one" value="0">
  <input type="text" class="amount-two" value="0">
  <input type="text" class="amount-three" value='0'>
  <button>click</button>
</div>
<div class="cart">
  <input type="text" class="amount-one" value="0">
  <input type="text" class="amount-two" value="0">
  <input type="text" class="amount-three" value='0'>
  <button>click</button>
</div>

<div class="info"></div>

CSS

input {
  display: block;
}

JavaScript

const currentTariff = JSON.parse(localStorage.getItem("cabins") || "[]");
    const btn = document.querySelectorAll('button')
    const info = document.querySelector('.info')

    const render = (tariff = currentTariff) => {
      [...tariff].forEach((el) => {
        info.insertAdjacentHTML(
          "beforeend",
          `<div>${el.accommodation}</div>`)
      })
    }
    render()

    btn.forEach((button) => {
      button.addEventListener("click", function(e) {
        const cart = e.target.closest(".cart");
        const countOne = cart.querySelector(".amount-one").value;
        const countTwo = cart.querySelector(".amount-two").value;
        const countThree = cart.querySelector(".amount-three").value;

        const accommodationPass =
          parseInt(countOne) +
          parseInt(countTwo) +
          parseInt(countThree);

        const obj = {
          countOne: countOne,
          countTwo: countTwo,
          countThree: countThree,
          accommodation: parseInt(accommodationPass),
        }

        const passengersMax = 2; //максимальное количество пассажиров
        let accommodationSum; //глобальная переменная суммы количества для условия

        if (obj.accommodation > passengersMax) {
          alert(false)
        } else if (obj.accommodation > passengersMax ||
          accommodationSum > passengersMax) {
          alert(false)
        } else if (accommodationSum > passengersMax) {
          alert(false)
        } else {
          currentTariff.push(obj);
          updateState()
          render([obj]);
        }

        accommodationSum = currentTariff.reduce( //подсчет количества
          (acc, curr) => acc + curr.accommodation,
          0
        );
        console.log(accommodationSum)
      })

      function updateState() {
        localStorage.setItem("cabins", JSON.stringify(currentTariff));
      }

    })