The conversation between human and AI assistant.
[|Human|] What is the national day of Germany?
[|AI|] The National Day of Germany is called German Unity Day. It is celebrated on 3 October as a public holiday. This day commemorates the reunification of West and East Germany after which since the end of second world war in 1945, Federal Republic of Germany existed as a single German state.
[|Human|] 
What is the national day of Germany?