How to iterate over two properties in an object based on id in JavaScript?

I’m working with a JavaScript object, and when I do console.log(sessions), it outputs the following structure on console:

{
  101: { "id": 101, "nameEn": "English 1", "nameFr": "French 1" },
  102: { "id": 102, "nameEn": "English 2", "nameFr": "French 2" },
  103: { "id": 103, "nameEn": "English 3", "nameFr": "French 3" }
}

The sessions data type is an object.

I’m trying to write a function that retrieves the nameEn and nameFr values based on a given id. Here’s what I’ve tried:

// Function to fetch nameEn and nameFr based on id
const getNameById = (id) => {
  const session = sessions.find(session => session.id === id);  // Line A
  if (session) {
    return { nameEn: session.nameEn, nameFr: session.nameFr };
  } else {
    return `No session found for id ${id}`;
  }
};

// Example usage
console.log(getNameById(101)); 
console.log(getNameById(102)); 
console.log(getNameById(103)); 

However, at Line A, I’m encountering the following error:

Uncaught TypeError: Cannot read properties of undefined (reading 'find')

What am I missing, and how can I fix this to properly retrieve the nameEn and nameFr based on the id?