Simplify the following text for a Grade 10 native English-speaking person.
Original: Armani is planning in collaboration with Emaar Properties a chain of luxury hotels and resorts in several big cities including Milan , Paris , New York , London , Tokyo , Shanghai and Dubai .
Simplified: Armani agreed in 2004 with Emaar Properties to make some expensive hotels in some big cities , such as London , Paris , New York , Tokyo , Shanghai , Dubai and Milan .