A: Good morning. Could I speak with the manager, please? B: I am the assistant manager. Is there something I can help you with? A: The key you gave us to our apartment doesn't seem to be working. B: Did this key work okay for you before? A: We were using my roommate's key before and never really tried this one. B: Does the key seem to belong in that lock? A: It doesn't really fit at all. B: Try putting your key in the top lock one more time and turn it to the right. A: It works now, but it didn't work before. B: We have been having trouble with that lock. I will call a locksmith right away.