I think the little vestigial wings mean it's a fly, right? Wasps should have another functional pair of wings instead. Sometimes it's hard to tell but I only see 2 here.

To me they look very different:

1. The wasp in your picture has a very thin and long waist. in my picture its shorter and thicker.
2. wasp's waist is thinner toward the thorax and wider toward abdomen, mine is opposite
3. pattern on the abdomen doesn't match.
4. this insect lay eggs in my luffa plant that grow into maggots, wasps don't have maggots in their life cycle.

There is already a fruitfly species that is very similar to my photos called pumpkin fruitfly but it's not an exact match

very similar but it doesn't have the elongated thin waist