matching query does not exist

class SearchCityView(ListView):
    model = City
    template_name = 'cities/search.html'
    context_object_name = 'city'
    form_class = CityForm
 
    def get_context_data(self, **kwargs): 
        context = super().get_context_data(**kwargs)
        context['title'] = 'Поиск'
        context['city_form'] = self.form_class
        return context
 
    def get_queryset(self):
        city_name = self.request.GET.get('name')
        return City.objects.get(name__iexact=city_name)

    def get_queryset(self):
        try:
            city_name = self.request.GET.get('name')
            return City.objects.get(name__iexact=city_name)
        except DoesNotExist:
            return HttpResponse('Не найдено')

        if City.objects.get(name__iexact=city_name):
            return HttpResponse('good')
        else:
            return HttpResponse('bad')

        except:
            return HttpResponseRedirect('bad')

        try:
           city_name = self.request.GET.get('name')
           return City.objects.get(name__iexact=city_name)
        except:
            return HttpResponseRedirect('dont have')

    def get(self):
        try:
            city_name = self.request.GET.get('name')
            return City.objects.get(name__iexact=city_name)
        except DoesNotExist:
            return HttpResponse('Не найдено')