What could I have done better, talking to a stranger?

I've been trying to get out of my comfort zone and tried to start a conversation with a stranger (cleaning lady at a hotel), asked them how their day was going? When they asked me me the same question "How's your day going?". I just said "Good" and couldn't come up with anything else. It became awkward and I just walked away. Any ideas on what I could have said / acted to make it more natural?