I feel like if I have someone ask me to introduce them a job where they interact with people, the first thing I would suggest would definitely NOT have anything to do with flirting or getting handsy with customers since that's what normal people would do.
If he specifically wants a job with being kissy to customers, he needs to reword his sentence to her but then again that's kinda difficult without being too obvious
Then again, the most obvious choice would be a host club, but for some reason that didn't click in his head