public static void userRegistrationUI(ServicesUser service)
 {
     try
     {
         string tempStr = null;
         Console.Clear();
         Console.WriteLine("======Registration=====");
         Console.WriteLine("Enter your IIN");
         tempStr = Console.ReadLine();
         if (tempStr != null && tempStr.Length == 12)
         {
             if (service.userDoesExist(tempStr) == null)
             {
                 User newUser = userParse.GetUserData(tempStr);
                 Console.WriteLine("Enter your password");
                 newUser.password = Console.ReadLine();
                 service.userRegistration(newUser);
             }
             else
             {
                 Console.Clear();
                 Console.WriteLine("User with such IIN already exists, try again");
                 Console.ReadKey();
                 userRegistrationUI(service);
             }
         }
         else
         {
             Console.WriteLine("There is no such IIN, try again");
             Console.ReadKey();
             userRegistrationUI(service);
         }
         Console.WriteLine("Registration is succsessfull!!!");
         Console.ReadKey();
         Console.Clear();
     }
     catch (Exception ex)
     {
         log.Error(ex.Message);
     }
 }