The engine cranks but will not turn over like there is no spark?

I'm getting fuel but, here's the thing: so I had put gas in it some gas in it it's been sitting for a little while I turn the key to the on position so the fuel pump can Prime the lines or whatever then I turn it off and on I do this about three times and try to start it and nothing and then I do it again but this time on one of the key turns when I go to the on position all of the console lights come on and then I hear a ding, ding, ding, and the thing fired right up I let it run for a second and I turned it off because I was told it's probably going to need some transmission fluid so I go get transmission fluid and I come back and I put it in and I put oil in and I go to start the car and it doesn't start again when I turn the key to the on position the shift indicator light comes on and the radio comes on and that's about it and I've never heard the ding ding, ding, again.