diff --git a/src/invitation-request-dialog.hpp b/src/invitation-request-dialog.hpp
new file mode 100644
index 0000000..bd2bd1d
--- /dev/null
+++ b/src/invitation-request-dialog.hpp
@@ -0,0 +1,59 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2013, Regents of the University of California
+ *
+ * BSD license, See the LICENSE file for more information
+ *
+ * Author: Qiuhan Ding <qiuhanding@cs.ucla.edu>
+ *         Yingdi Yu <yingdi@cs.ucla.edu>
+ */
+
+#ifndef CHRONOS_INVITATION_REQUEST_DIALOG_HPP
+#define CHRONOS_INVITATION_REQUEST_DIALOG_HPP
+
+#include <QDialog>
+
+#ifndef Q_MOC_RUN
+#include "common.hpp"
+#endif
+
+namespace Ui {
+class InvitationRequestDialog;
+}
+
+namespace chronochat{
+
+class InvitationRequestDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+  explicit
+  InvitationRequestDialog(QWidget* parent = 0);
+
+  ~InvitationRequestDialog();
+
+signals:
+  void
+  invitationRequestResponded(const ndn::Name& invitationName, bool accepted);
+
+public slots:
+  void
+  onInvitationRequestReceived(QString alias, QString chatroom, ndn::Name invitationInterest);
+
+private slots:
+  void
+  onOkClicked();
+
+  void
+  onCancelClicked();
+
+
+private:
+  Ui::InvitationRequestDialog* ui;
+  ndn::Name m_invitationInterest;
+};
+
+} // namespace chronochat
+
+#endif // CHRONOS_INVITATION_REQUEST_DIALOG_HPP