resto_sequence2.puml

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

autonumber

actor Staff
participant "Authentication System"
participant "Table Manager"
database Database

Staff -> "Authentication System": Login Request
"Authentication System" -> Database: Verify Credentials
Database --> "Authentication System": Credentials Verified
"Authentication System" --> Staff: Login Successful

Staff -> "Table Manager": Update Table Availability
"Table Manager" -> Database: Update Availability Details
Database --> "Table Manager": Availability Updated
"Table Manager" --> Staff: Update Successful
@enduml