Yes, you can use the parameter for the title.

Now add parameter
List<ReportParameter> parameters = new List<ReportParameter>();
parameters.Add(new ReportParameter("AccountName", accountName));
parameters.Add(new ReportParameter("AccountCode", "Account Code: " + accountCode));
parameters.Add(new ReportParameter("UnitName", unitName.ToUpper()));
parameters.Add(new ReportParameter("UnitAddress", unitAddress.ToUpper()));
parameters.Add(new ReportParameter("Title", "Schedule"));
parameters.Add(new ReportParameter("Date", dateVal));
ReportViewer1.LocalReport.SetParameters(parameters);
ReportViewer1.ShowParameterPrompts = false;
ReportViewer1.ShowPromptAreaButton = false;
ReportViewer1.LocalReport.Refresh();