Test

@startuml
  
title Hotel Management System

' Define interfaces
interface IReservable {
    + makeReservation(customer: Customer, dates: DateRange): boolean
    + cancelReservation(reservationId: String): boolean
    + checkAvailability(date: Date): boolean
}

interface IPayable {
    + processPayment(amount: double): boolean
    + issueRefund(reservationId: String): boolean
    + getPaymentStatus(): String
}

@enduml