The key is not trying to trick them. Acknowledging their feelings as valid, helping them identify what they are feeling, and help them soothe.
A dismissive parent doesn’t have to ignore a child. Just dismiss that child’s emotions as irrational or not helpful. They might use distractions or tricks which may limit the ability to do the above.
At the end of the day, tricking a child is not a good parenting style even though it can be cute and even funny.