Python newbie problem

cars = {'honda': 'civic-si', 'mazda': 'mazda3', 'ford': 'focus'}

print("Enter an oem-name: (blank to quit)" )

oem_name = input()
if oem_name == '':
    break

if oem_name in cars:
    print("That is the " + cars(oem_name))
else:
    print("We don't have that oem-name. Try again.")


THE ERROR I'M GETTING IS:
line 7
    break
       ^
SyntaxError: 'break' outside loop

Process finished with exit code 1