Beginners – Daffy Duckifier – Code Review Stack Exchange

Would this ruby ​​code work? It is said to translate normal text in Daffy Duckth Thlang.

# Daffy Duckifier
print "Pleathe enter a thtring!: " 
user_input = gets.chomp
user_input.downcase!
# turns "s" into "th"
if user_input.include? "s"
  user_input.gsub!(/s/, "th")
else
  puts "Nothing Found!"
end
# turns "c" into "sh"
if user_input.include? "c"
  user_input.gsub!(/c/, "sh")
else
  # Nothing to shay!
end
puts "Your thring ith: #{user_input}"

I need to know!