"We have a happy Spring Festival" can be translated as "我们有一个快乐的春节" in Chinese.
The Spring Festival, also known as the Chinese New Year, is the most important traditional festival for Chinese people, originating from ancient times to celebrate the end of winter and the arrival of spring.
Here are some Engpsh examples and their Chinese translations:
"Wishing you a happy and prosperous Spring Festival" (祝你春节快乐，全家幸福)
"Greeting and best wishes for the Spring Festival" (春节问候与祝福)
"May the Spring Festival bring joy, health and wealth to you and your family" (愿春节带给你和你的家人快乐，健康和财富)