Добавьте файлы проекта.

Services/Tickets/Extentions/ServiceCollectionExtentions.cs

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+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.DependencyInjection.Extensions;
+using Services.Numbers.Extentions;
+
+namespace Services.Tickets.Extentions;
+
+public static class ServiceCollectionExtentions
+{
+    public static void TyAddTicketService(this IServiceCollection services)
+    {
+        services.TyAddNumbersService();
+        services.TryAddScoped<ITicketService, TicketService>();
+    }
+}

Services/Tickets/ITicketRepository.cs

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+using Services.Tickets.Models;
+
+namespace Services.Tickets;
+public interface ITicketRepository
+{
+    Task<long> AddNewTicket(LotteryTicket ticket);
+    Task<List<LotteryTicket>> GetAllTickets();
+}

Services/Tickets/ITicketService.cs

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+using Services.Tickets.Models;
+
+namespace Services.Tickets;
+
+public interface ITicketService
+{
+    Task<List<LotteryTicket>> GetAllTickets();
+    Task<LotteryTicket> GetNewTicket();
+}

Services/Tickets/Models/LotteryTicket.cs

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+namespace Services.Tickets.Models;
+public class LotteryTicket
+{
+    public long? Id { get; set; }
+    public byte[]? Numbers { get; set; }
+    public string? Owner { get; set; }
+    public string? PhoneNumber { get; set; }
+}

Services/Tickets/TicketService.cs

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+using Microsoft.Extensions.Logging;
+using Services.Numbers;
+using Services.Tickets.Models;
+
+namespace Services.Tickets;
+
+internal class TicketService : ITicketService
+{
+    private readonly ILogger<TicketService> _logger;
+    private readonly ITicketRepository _ticketRepository;
+    private readonly INumbersService _numbersService;
+
+    public TicketService(ILogger<TicketService> logger, ITicketRepository ticketRepository, INumbersService numbersService)
+    {
+        _logger = logger;
+        _ticketRepository = ticketRepository;
+        _numbersService = numbersService;
+    }
+
+    public  Task<List<LotteryTicket>> GetAllTickets()
+    {
+        return _ticketRepository.GetAllTickets();
+    }
+
+    public async Task<LotteryTicket> GetNewTicket()
+    {
+        LotteryTicket ticket = new()
+        {
+            Numbers = _numbersService.GetNumbers(6)
+        };
+        var id = await _ticketRepository.AddNewTicket(ticket);
+        ticket.Id = id;
+        //_logger.LogInformation("New ticket created");
+        return ticket;
+    }
+}