'Yellowbook' Digital Area Code Search Ruby

# Set up the dataset - hash
dial_book = {

"newyork" => "212",
"newbrunswick" => "732",
"edison" => "908",
"plainsboro" => "609",
"sanfrancisco" => "301",
"miami" => "305",
"paloalto" => "650",
"evanston" => "847",
"orlando" => "407",
"lancaster" => "717"

}

# Define the methods: Get city names from the hash
def get_city_names(dial_book)  
  puts "Which city do you want the area code for?"  
  dial_book.each {|key, value| puts key}
end

# Define the method: Get area code based on given hash and key
def get_area_code (dial_book)  
  puts "Enter your selection"  
  city_selection = gets.chomp    
  dial_book.each do |key, value|    
    if city_selection == key     
      puts "The area code for #{key} is #{value}"    
    end  
  end
end

# Loop flow
loop do  
  puts "Do you want to look up a city's area code? (Y/N)"  
  initiation_answer = gets.chomp.downcase  
  break if initiation_answer != "y"  
  get_city_names(dial_book)    
  get_area_code (dial_book)
end