diff --git a/20230809-LS.csproj b/20230809-LS.csproj
new file mode 100644
index 0000000..7547697
--- /dev/null
+++ b/20230809-LS.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net7.0</TargetFramework>
+        <RootNamespace>_20230809_LS</RootNamespace>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+</Project>

diff --git a/20230809-LS.csproj b/20230809-LS.csproj
new file mode 100644
index 0000000..7547697
--- /dev/null
+++ b/20230809-LS.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net7.0</TargetFramework>
+        <RootNamespace>_20230809_LS</RootNamespace>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+</Project>
diff --git a/DinnerEvents.cs b/DinnerEvents.cs
new file mode 100644
index 0000000..e2dec30
--- /dev/null
+++ b/DinnerEvents.cs
@@ -0,0 +1,7 @@
+namespace Dinner;
+
+interface IEvent { }
+
+record DinnerPlanned(Guid DinnerId) : IEvent;
+record DinnerSeatReserved(Guid DinnerId, Guid GuestId) : IEvent;
+record DinnerHosted(Guid DinnerId, IEnumerable<Reservation> Reservations) : IEvent;
\ No newline at end of file

diff --git a/20230809-LS.csproj b/20230809-LS.csproj
new file mode 100644
index 0000000..7547697
--- /dev/null
+++ b/20230809-LS.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net7.0</TargetFramework>
+        <RootNamespace>_20230809_LS</RootNamespace>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+</Project>
diff --git a/DinnerEvents.cs b/DinnerEvents.cs
new file mode 100644
index 0000000..e2dec30
--- /dev/null
+++ b/DinnerEvents.cs
@@ -0,0 +1,7 @@
+namespace Dinner;
+
+interface IEvent { }
+
+record DinnerPlanned(Guid DinnerId) : IEvent;
+record DinnerSeatReserved(Guid DinnerId, Guid GuestId) : IEvent;
+record DinnerHosted(Guid DinnerId, IEnumerable<Reservation> Reservations) : IEvent;
\ No newline at end of file
diff --git a/Program.cs b/Program.cs
new file mode 100644
index 0000000..507262d
--- /dev/null
+++ b/Program.cs
@@ -0,0 +1,83 @@
+namespace Dinner;
+
+class Dinner
+{
+    private readonly uint _availableSeats;
+    private readonly DateTime _scheduled;
+    private readonly List<Reservation> _reservations;
+    private readonly List<IEvent> _events = new();
+    private readonly Guid _dinnerId;
+
+    private Dinner(Guid dinnerId, uint availableSeats, DateTime scheduled)
+    {
+        _dinnerId = dinnerId; 
+        _availableSeats = availableSeats;
+        _scheduled = scheduled;
+        _reservations = new List<Reservation>();
+        
+        _events.Add(new DinnerPlanned(_dinnerId));
+    }
+    
+    public static Dinner PlanDinner(Guid dinnerId, uint availableSeats, DateTime scheduled)
+    {
+        if (availableSeats == 0)
+        {
+            throw new InvalidOperationException("Must have at least one seat at a dinner.");
+        }
+        
+        return new Dinner(dinnerId, availableSeats, scheduled);
+    }
+
+    public bool ReserveSeat(Guest guest)
+    {
+        if (_reservations.Count <= _availableSeats)
+        {
+            _reservations.Add(new Reservation(Guid.NewGuid(), guest));
+            _events.Add(new DinnerSeatReserved(_dinnerId, guest.GuestId));
+            
+            return true;
+        }
+
+        return false;
+    }
+
+    public void CancelReservation(Guest guest)
+    {
+        var reservation = _reservations.SingleOrDefault(x => x.Guest.Equals(guest));
+        if (reservation == null)
+        {
+            throw new InvalidOperationException("Guest does not have a reservation.");
+        }
+
+        _reservations.Remove(reservation);
+    }
+
+    public void ConfirmReservation(Guest guest)
+    {
+        var reservation = _reservations.SingleOrDefault(x => x.Guest.Equals(guest));
+        if (reservation == null)
+        {
+            throw new InvalidOperationException("Guest does not have a reservation.");
+        }
+
+        reservation.Confirm();
+    }
+
+    public void StartDinner()
+    {
+        var confirmedReservations = _reservations.Where(x => x.IsConfirmed);
+        _events.Add(new DinnerHosted(_dinnerId, confirmedReservations));
+    }
+}
+
+record Reservation(Guid ReservationId, Guest Guest)
+{
+    public bool IsConfirmed { get; private set; }
+    
+    public void Confirm()
+    {
+        IsConfirmed = true;
+    }
+}
+
+record Guest(Guid GuestId, string Name);
\ No newline at end of file