Is there a command for getting out of the function?

def user_guess(num):
	if(num==rand_num):
		print "hurrey! you guessed it right.\n"
		another_try=raw_input("would you like to guess another number??\n")
		if(another_try == "y" or another_try == "yes"):
			num = int(input("Guess the number!\n"))
	        return num
		else: 
			print "okay! have a good day!"
			sys.exit()
			
	elif(num>rand_num):
		print "your guessed number is greater than the actual number,,\n"
		guess_again=raw_input("would you like to guess the same number again??\n")
		if(guess_again == "y" or guess_again == "yes"):
			num=int(input("guess the number"))
			user_guess(num)
		else: #here i want to get out of the function only,I want the other part of the program to run
	elif(num<rand_num):
		print "your guessed number is lesser than the actual number,,\n"
	else: