This is a stylistic point -- I'm not a fan of `if !condition`, but it's acceptable in the way you used it here (without an else).

But, I prefer:

```ruby
unless at_least_one
  puts "Sorry #{name.capitalize}, I couldn't find any concerts to match your query."
end
```

and with 1 line statements, ruby makes it very nice to read:

```ruby
puts "Sorry #{name.capitalize}, I couldn't find any concerts to match your query." unless at_least_one
```