i have healthy relationships.

associations.rb

@@ -5,39 +5,34 @@
 def setup
   ActiveRecord::Base.establish_connection adapter: "sqlite3", database: ":memory:"
 end
-
 def migrate
   ActiveRecord::Migrator.up "db/migrate"
 end
 
-
 def generate_migrations
   ActiveRecord::Migration.create_table :hotels do |t|
-    #insert our columns here
-
+    t.integer "room_count"
+    t.string "name"
     t.timestamps null: false
   end
-
   ActiveRecord::Migration.create_table :rooms do |t|
-    #insert our columns here
-
+    t.integer "rate"
+    t.integer "hotel_id"
+    t.string "location"
     t.timestamps null: false
   end
 
-  ActiveRecord::Migration.create_table :bookings do |t|
-    #insert our columns here
-
+  ActiveRecord::Migration.create_table :users do |t|
+    t.string "name"
     t.timestamps null: false
   end
-
-  ActiveRecord::Migration.create_table :users do |t|
-    #insert our columns here
-
+  ActiveRecord::Migration.create_table :bookings do |t|
+    t.integer "room_id"
+    t.integer "user_id"
     t.timestamps null: false
   end
 end
 
-
 ## Do Not Modify These Lines ##
 setup()
 generate_migrations()
@@ -46,25 +41,28 @@ def generate_migrations
 
 
 class Hotel < ActiveRecord::Base
-  #insert our associations here
-
+  has_many :rooms
+  has_many :bookings, through: :rooms
+  has_many :booked_guests, through: :bookings, source: :guest
   def to_s
     "#{name} with #{rooms.count} rooms"
   end
 end
 
 class Booking < ActiveRecord::Base
-  #insert our associations here
-
+  alias_attribute :check_in, :created_at
+  belongs_to :room
+  belongs_to :guest, foreign_key: "user_id", class_name: "User"
 end
 
 class Room < ActiveRecord::Base
-  #insert our associations here
-
+  belongs_to :hotel
+  has_many :bookings
 end
 
 class User < ActiveRecord::Base
-  #insert our associations here
+  has_many :booked_rooms, through: :bookings, source: :room
+  has_many :bookings
 
 end
 
@@ -74,11 +72,11 @@ def random_loc; (('a'..'e').to_a.sample) + rand(1..5).to_s; end
 
 hotel = Hotel.create!(name: "Westin", room_count: 5)
 
-5.times do 
+5.times do
   hotel.rooms << Room.create!(
     rate: [125,200,175].sample,
     location: random_loc
-  ) 
+  )
 end
 
 user = User.create!(name: "John Smith")