public async Task WhenSettingPending_AndBookingIsCancelled_ShouldSetBookingStatusToClosed()
{
await _bookingManger.Create();
await _bookingManger.SubmitDetails("Artur", 2);
await _bookingManger.Cancel();
var status = _bookingManger.Booking.Status;
status.Should().Be(BookingStatus.Closed);
}