Update two table from One RazorPage - asp.net-core-mvc

Question

Using the create page I am trying to update two tables using razor page. I create another class where I populated all the properties of both tables to make a joinder. Now my form is not sending data to my defined method, where am i making the mistake?
#page
#model Restaurant.Model.CityBranchJoinder
#{
ViewData["Title"] = "Create";
}
<hr />
<div class="row">
<div class="col-md-4">
#using (Html.BeginForm("SaveRecord","Cities/Create",FormMethod.Post))
{
<h1> Brand ID</h1>
#Html.TextBoxFor(model=>model.BranchID)
<h1> Brand Name</h1>
#Html.TextBoxFor(model=>model.BranchName)
<h1> CityID</h1>
#Html.TextBoxFor(model=>model.CityId)
<h1> CityName</h1>
#Html.TextBoxFor(model=>model.CityName)
<input type="submit" value="Create" class="btn btn-primary" />
}
</div>
</div>
[BindProperty]
public City City { get; set; }
public Branch Branch { get; set; }
public CityBranchJoinder CityBranchJoinder { get; set; }
[HttpPost]
public IActionResult SaveRecord(CityBranchJoinder model)
{
City city= new City();
Branch branch= new Branch();
city.CityId= model.CityId;
city.CityName= model.CityName;
_context.City.Add(city);
_context.SaveChangesAsync();
branch.BranchID= model.BranchID;
branch.BranchName= model.BranchName;
branch.CityId= model.CityId;
_context.Branch.Add(branch);
_context.SaveChangesAsync();
return RedirectToPage("./Index");
}
}
}
I tried changing Cities/Create to Create only but it does not work. Create is my Page Model name but on top I am using another model so that I could post to two tables using one form. But my form does not submit data to my action item.