oap_labs/ConsoleApp3/ClassLibrary1/Class1.cs

namespace ClassLibrary1;

using System.Reflection;

public class Category
{
    public string title { get; set; }

    public Category(string Title)
    {
        title = Title;
    }
    public void Display()
    {
        Console.WriteLine($"Это путешествие {title}");
    }
}
public class Place
{
    public string Name { get; set; }
    public int Price { get; set; }
    public Category category { get; set; }

    public Place(string name, int price)
    {
        Name = name;
        Price = price;
    }

    public void Display()
    {
        Console.WriteLine($"{Name} - ${Price}");
    }
}
public class Client
{
    public string Name { get; set; }
    public Client (string name)
    {
        Name=name;
    }
    public void Order(List<Place> places)
    {
        Console.WriteLine($"{Name} выбрал путешествие в: ");
        foreach (var place in places)
        {
            place.Display();
        }
    }

}