Yes, you’ll need to set this as variable product.
After selecting variable product, go to attributes.
Name it – for instance – Number of Attendants.
Then in the values area enter – 1 attendant: $125|2 attendants: $195
At this point, press publish.
Then select the variables tab and click on the items – 1 attendant – or – 2 attendants – to drop down the options and set the pricing.
Save your changes and you’ll have a dropdown selection box that will appear on your product page. The “add to cart” button will appear when one of these options is selected.
Hope this is helpful.