resolving a promise inside a function from another function

tutor();

async function tutor(){
console.log('tutor function initiated..');
// wait until updateGuider function resolves
await updateGuider('default');
// The expected result is to reach this line after updateGuider resolves, but we can't so far!
console.log('Procccess Ends');


}
// Not working unless we use var instead of let?!
let updateGuiderResolve;

function updateGuider(state){    
  return new Promise((resolve) => { 
  updateGuiderResolve = resolve;
    switch(state) {
          case 'default':
          speak();
          break;         
    }
    });  
}


async function speak(){
   console.log('entered speak')
   setTimeout(function(){
     //after 5 seconds we resolve the updateGuider from speak function
     updateGuiderResolve();     
   },5000)
}