diff --git a/docs/diagrams/FindFreeTimeSequenceDiagram.puml b/docs/diagrams/FindFreeTimeSequenceDiagram.puml
index ec2197c2eea..56b96a7c4a5 100644
--- a/docs/diagrams/FindFreeTimeSequenceDiagram.puml
+++ b/docs/diagrams/FindFreeTimeSequenceDiagram.puml
@@ -43,6 +43,12 @@ deactivate FindFreeTimeCommand
 FindFreeTimeParser --> AddressBookParser : f
 deactivate FindFreeTimeParser
 
+FindFreeTimeParser-[hidden]-> AddressBookParser
+destroy FindFreeTimeParser
+
+AddressBookParser -> LogicManager : f
+deactivate AddressBookParser
+
 
 LogicManager -> FindFreeTimeCommand : execute()
 activate FindFreeTimeCommand
@@ -75,5 +81,16 @@ activate CommandResult
 
 CommandResult --> FindFreeTimeCommand
 deactivate CommandResult
+CommandResult-[hidden]-> AddressBookParser
+destroy CommandResult
+
+FindFreeTimeCommand --> LogicManager
+deactivate FindFreeTimeCommand
+
+FindFreeTimeCommand-[hidden]-> AddressBookParser
+destroy FindFreeTimeCommand
+
+[<--LogicManager
+deactivate LogicManager
 
 @enduml
diff --git a/docs/diagrams/GroupPersonSequenceDiagram.puml b/docs/diagrams/GroupPersonSequenceDiagram.puml
index da0635dc3af..be476e6fe0c 100644
--- a/docs/diagrams/GroupPersonSequenceDiagram.puml
+++ b/docs/diagrams/GroupPersonSequenceDiagram.puml
@@ -68,7 +68,20 @@ create CommandResult
 GroupPersonCommand -> CommandResult
 activate CommandResult
 
+
 CommandResult --> GroupPersonCommand
 deactivate CommandResult
 
+CommandResult -[hidden]-> AddressBookParser
+destroy CommandResult
+
+GroupPersonCommand --> LogicManager
+
+deactivate GroupPersonCommand
+
+GroupPersonCommand -[hidden]-> AddressBookParser
+destroy GroupPersonCommand
+
+[<--LogicManager
+deactivate LogicManager
 @enduml
diff --git a/docs/diagrams/UngroupPersonSequenceDiagram.puml b/docs/diagrams/UngroupPersonSequenceDiagram.puml
index cbd1e8291fa..7050a1a1cbc 100644
--- a/docs/diagrams/UngroupPersonSequenceDiagram.puml
+++ b/docs/diagrams/UngroupPersonSequenceDiagram.puml
@@ -62,8 +62,20 @@ create CommandResult
 UngroupPersonCommand -> CommandResult
 activate CommandResult
 
+
 CommandResult --> UngroupPersonCommand
 deactivate CommandResult
+UngroupPersonCommand --> LogicManager
+CommandResult -[Hidden]-> UngroupPersonCommand
+destroy CommandResult
+
+deactivate UngroupPersonCommand
+
+UngroupPersonCommand -[hidden]-> AddressBookParser
+destroy UngroupPersonCommand
+
+[<--LogicManager
+deactivate LogicManager
 
 
 @enduml