New Events Business, 1st events this weekend (struggling with ticket sales)

We have launched a dating events business in London and have our first events this weekend. However despite advertising the events, on Facebook, Twitter, Eventbrite etc we are really struggling with ticket sales. I just wondered if anyone had any tips as to how we can increase our sales, I know people usually leave it late to book but at this stage it probably wouldn’t be worth going ahead with either event as the numbers aren’t strong enough.