How to check if there is some value inside array of objects (which is also an object) in javascript?

I have this object in js:

var list = {
  "1": {
    "id": "1",
    "start_date": "2019-01-14",
    "end_date": "2019-01-14",
    "text": "some text one",
    "assistent": "12"
  },
  "2": {
    "id": "2",
    "start_date": "2021-12-01",
    "end_date": "2021-12-01",
    "text": "another text",
    "assistent": "15"
  },
  "3": {
    "id": "3",
    "start_date": "2021-12-02",
    "end_date": "2021-12-02",
    "text": "one more text",
    "assistent": "2"
  } 
}

I want to check, if there is an "assistent"=2 inside this array of objects, and, if yes, get a "text" parameter for this assistent (it have to be "one more text"). What i have tried:

var foundtext = list.find(x => x.assistent === '2').text;
console.log(foundtext);

(will show that .find is not a function)
Also:

var foundtext = list.find(x => x.assistent == '2')['text'];
console.log(foundtext);

(will show the same error)

Also tried this:

for (var i=1; i <= list.length; i++) {
console.log(list[i]);
//and than perform the search inside list[i];
}

and this :

list.forEach(value => {
  console.log(value);
//and than perform the search inside value;
})

So what is the right approach to perform this kind of check?

>Solution :

I would do something like this.

const text = Object.values(list).find(entry => entry.assistent === "2")?.text

EDIT

For the additional question in the comments below.

const texts = Object.values(list)
                    .filter(entry => entry.assistent === "2")
                    .map(entry => entry.text)