EF Core 6 - Error when creating relationship in dbContext

Here is the relationship I need to create this Relation

And here are the entity classes for each table

The Airport table:

[Table("Airport")]
public class Airport
{
    [Key]
    public Guid Id { get; set; }
    [Required]
    [MaxLength(50)]
    public string Name { get; set; }
    [Required]
    [MaxLength(50)]
    public string City { get; set; }
    [Required]
    [MaxLength(50)]
    public string Country { get; set; }
    public ICollection<FlightSchedule> DepartureAirports { get; set; }
    public ICollection<FlightSchedule> ArrivalAirports { get; set; }
    public Airport()
    {
        DepartureAirports = new List<FlightSchedule>();
        ArrivalAirports = new List<FlightSchedule>();
    }
}

The Flight Schedule table:

[Table("FlightSchedule")]
public class FlightSchedule
{
    [Key]
    public Guid Id { get; set; }
    [Required]
    public Guid DepartureAirportId { get; set; }
    public Airport AirportDepart { get; set; }
    [Required]
    public Guid ArrivalAirportId { get; set; }
    public Airport AirportArrival { get; set; }
    [Required]
    public DateTime DepartureTime { get; set; }
    [Required]
    public DateTime ArrivalTime { get; set; }
    public ICollection<Flight> Flights { get; set; }
    public FlightSchedule()
    {
        Flights = new List<Flight>();
    }
}

And here is my config for DbContext in OnModelCreating() method:

protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);
        modelBuilder.Entity<Airport>(entity =>
        {
            entity.Property(e => e.Id).ValueGeneratedOnAdd();
        });

        modelBuilder.Entity<FlightSchedule>(entity =>
        {
            entity.Property(e => e.Id).ValueGeneratedOnAdd();

            entity.HasOne(e => e.AirportDepart)
            .WithMany(e => e.DepartureAirports)
            .HasForeignKey(e => e.DepartureAirportId)
            .OnDelete(DeleteBehavior.ClientSetNull);

            entity.HasOne(e => e.AirportArrival)
                .WithMany(e => e.ArrivalAirports)
                .HasForeignKey(e => e.ArrivalAirportId)
              .OnDelete(DeleteBehavior.ClientSetNull);
        });

The diagram built from SQL server looks like what I designed but when I add some data seeder for those 2 tables, only Airport works, Flight Schedule would produce this error

No relationship from 'Airport' to 'FlightSchedule' has been configured by convention because there are multiple properties on one entity type - {'ArrivalAirports', 'DepartureAirports'} that could be matched with the properties on the other entity types - {'AirportArrival', 'AirportDepart'}. This message can be disregarded if explicit configuration has been specified in 'OnModelCreating'.

I suspect maybe my configuration is wrong but I'm not sure where the cause is, since this is my first time trying with code first.

In your table FlightSchedule, columns DepartureAirportId and ArrivalAirportId need to be set up at nullable.

A record in FlightSchedule table can have only one of these values, not both.