<s>[INST] from django.core.signals import request_finished
from django.dispatch import receiver

@receiver(request_finished)
def my_callback(sender, **kwargs):
    print("Request finished!")

from django.db import models

# Create your models here.
class Tutor(models.Model):
    first_name = models.CharField(max_length=100)
    last_name = models.CharField(max_length=100)
    email = models.EmailField()
    subject = models.CharField(max_length=100)
    city = models.CharField(max_length=100)
    price = models.DecimalField(max_digits=5, decimal_places=2)

    def __str__(self):
        return f'{self.first_name} {self.last_name}'

from django.core.signals import request_finished

from django.dispatch import receiver

@receiver(request_finished)
def my_callback(sender, **kwargs):
    print("Request finished!")

How can I use this request_finished signal to send a notification email to the tutors after a successful booking?[/INST]