C# Interface Super-Basic

PersonPrinter.cs

using System;

namespace PersonPrinter
{
    interface IPerson
    {
        string Name { get; set; }
        int Age { get; set; }
    }

    class Person : IPerson
    {
        private string name;
        private int age;

        public string Name
        {
            get
            {
                return this.name;
            }
            set
            {
                if (value.Length > 1)
                {
                    this.name = value;
                }
                else
                {
                    throw new Exception("Invalid name, try again.");
                }
            }
        }

        public int Age
        {
            get
            {
                return this.age;
            }
            set
            {
                try
                {
                    this.age = Convert.ToInt32(value);
                }
                catch (Exception)
                {
                    throw;
                }
            }
        }
    }

    public class Program { 
        public static void Main(string[] args)
        {
            Person TestChar = new Person();

            Console.WriteLine("What do you want to call your person:");
            string name = Console.ReadLine();

            TestChar.Name = name;

            Console.WriteLine("How old is {0}?", TestChar.Name);
            string ageString = Console.ReadLine();

            TestChar.Age = Convert.ToInt32(ageString);

            Console.WriteLine("{0} is {1} years old.", TestChar.Name, TestChar.Age);

            Console.WriteLine("\nPress any key to exit..");
            Console.ReadKey();
        }
    }
}