Though you did not mention any situations here but the best option could be:
Payal can work as an Interior Designer or a Construction Manager , and Otis can work as a Boiler Operator or a Roofer.
The reason being that Payal has a bachelor's degree which means she has an extensive knowledge in some specific area of academics. Whereas Otis has attended a vocational school so he would have more of technical skills. So the mentioned jobs would suit them best according to their qualifications.
