@startuml
'https://plantuml.com/sequence-diagram

actor TrafficManager as TM
participant ": System" as SY

autonumber
activate TM
TM -> SY: starts the creation of the Summary
activate SY
SY --> TM : ask the IMO code that the user wants to use for the search
deactivate SY
TM -> SY : type the code
activate SY
SY --> TM : shows the ship name and requests a confirmation
deactivate SY
TM -> SY: confirms the data
activate SY
SY --> TM : show the Summary associated with the code inserted
deactivate SY



@enduml