English to Russian Other Cosmetics, Beauty

Give an example of how you would set up a colour seminar (styling seminar / nail seminar) for millennials and boomer learners to ensure that both learning styles have been captured.
SITUATION 3:
You have to convert a recently gained customer from a competitor.
The objective is to introduce your specific care line.
Your sales partner has confirmed that only young hairdressers/nail technicians work there.
The decision-maker is older and always challenging with traditional care treatment approaches.
What learning style would you apply to motivate the employees to move to a our company care line?