/// <summary>
        /// Flight plan is requested from a broadcast by ATC client
        /// </summary>
        private async void Hub_OnRequestFlightPlan(string atcConnectionId, string callsign)
        {
            if (viewModel.Callsign == callsign)
            {
                try
                {
                    var aircraftData = await flightConnector.RequestAircraftDataAsync(new CancellationTokenSource(5000).Token);

                    var data = await flightConnector.RequestFlightPlanAsync(new CancellationTokenSource(15000).Token);

                    if (data != null)
                    {
                        var flightPlan = new FlightPlanCompact(data, viewModel.Callsign, aircraftData.Title, (int)aircraftData.EstimatedCruiseSpeed, viewModel.Remarks);
                        await hub.SendAsync("ReturnFlightPlan", hub.ConnectionId, flightPlan, new string[] { atcConnectionId });
                    }
                }
                catch (TaskCanceledException ex)
                {
                    logger.LogError(ex, "Cannot get flight plan for ATC!");
                }
            }
        }