private void ChangeTicketStatus()
        {
            var alert = UIAlertController.Create(null, null, UIAlertControllerStyle.ActionSheet);

            if (ticket.Status != "Open")
            {
                alert.AddAction(UIAlertAction.Create("Open", UIAlertActionStyle.Default, async(action) =>
                {
                    await RemoteService.ChangeTicketStatus(ticket, "Open");
                    UpdateEnteringPossibility();
                }));
            }
            if (ticket.Status != "Pending")
            {
                alert.AddAction(UIAlertAction.Create("Pending", UIAlertActionStyle.Default, async(action) =>
                {
                    await RemoteService.ChangeTicketStatus(ticket, "Pending");
                    UpdateEnteringPossibility();
                }));
            }
            if (ticket.Status != "Closed")
            {
                alert.AddAction(UIAlertAction.Create("Closed", UIAlertActionStyle.Default, async(action) =>
                {
                    await RemoteService.ChangeTicketStatus(ticket, "Closed");
                    UpdateEnteringPossibility();
                }));
            }
            alert.AddAction(UIAlertAction.Create("Cancel", UIAlertActionStyle.Cancel, null));
            PresentViewController(alert, true, null);
        }