How to handle views.py after joining two models in Django?

Question

Here I've two models first one is Contact and second model is Sent_replies. So, what should I do in views.py so that If anyone send response in Contact, the data will also update in the Sent_replies model

models.py

class Contact(models.Model):
    message_id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=100)
    email = models.CharField(max_length=100)
    phone = models.CharField(max_length=100)
    comment = models.TextField(max_length=100)
    date = models.DateField()

    def __str__(self):
        return self.name

class Sent_replies(models.Model):
    message_sender = models.ForeignKey(Contact,on_delete=models.CASCADE, null=True)
    def __str__(self):
        return self.message.name

views.py

def contact(request):
    if request.method == "POST":
        name = request.POST.get("name")
        email = request.POST.get("email")
        phone = request.POST.get("phone")
        comment = request.POST.get("comment")
        if name != "":
            contact = Contact(name=name, email=email, phone=phone, comment=comment, date=datetime.today())
            contact.save()
            messages.success(request, 'Your response has been submitted successfully!!!')
    return render(request, 'contact.html')