-> upgradeRoom
set ... 'rooms.type'
-> upgradeClient
set ... 'client.type'
-> toPremium
upgradeRoom ... to 'suite'
upgradeClient ... to 'vip'
addExtras ... 'minibar' and 'massagist'
-> toPremium
upgradeRoom ... to 'suite'
upgradeClient ... to 'vip'
addExtras ... 'minibar' and 'massagist'
-> updateJohnBooking
get ... johnId
toPremium
wrapObject with johnId
-> updateMayBooking
get ... mayId
addExtras ... 'roomService'
wrapObject with mayId