Simple Dapper query and mapping

DapperMap.cs

public class Person
	{
		public int Id { get; set; }
		public string FirstName { get; set; }
		public string LastName { get; set; }
	}

	public class PersonService
	{
		public Person GetPerson(int id)
		{
			var connectionString = ConfigurationManager.ConnectionStrings["DefaultDbConnection"].ConnectionString;
			Person person = null;

			using (var connection = new SqlConnection(connectionString))
			{
				connection.Open();

				person = connection.Query<Person>("select * from person where id = @id", new { Id = 1 }).FirstOrDefault();
			}

			return person;
		}
	}