diff --git a/lib/ruber_dialog/resolver.rb b/lib/ruber_dialog/resolver.rb
new file mode 100644
index 0000000..1317c58
--- /dev/null
+++ b/lib/ruber_dialog/resolver.rb
@@ -0,0 +1,39 @@
+module RuberDialog
+  module DialogParts
+    include Parser
+    # This class matches character names and responses to nodes
+    class Resolver
+      attr_accessor :nodes_map, :chars_map
+
+      def initialize
+        @nodes_map = {}
+        @chars_map = {}
+      end
+
+      # ensure that each character's name from chars list is in the names list
+      def validate_characters(names, chars)
+        chars.each do |char|
+          raise ValidationError unless names.include? char.name
+
+          @chars_map[char.name] = char
+        end
+      end
+
+      # map nodes to their names
+      def resolve_nodes(nodes)
+        nodes.each do |node|
+          @nodes_map[node.name] = node
+        end
+      end
+
+      # ensure that every responce leads to a valid node
+      def validate_nodes
+        @nodes_map.each do |_, v|
+          v.each do |r|
+            raise ValidationError unless @nodes_map.include? r.next_node
+          end
+        end
+      end
+    end
+  end
+end