The conversation between human and AI assistant.
[|Human|] How old was Dominik Volek when he made his Czech Extraliga debut?
[|AI|] Dominik Volek was 20 years old. He debuted in 2014 and was born in 1994, so 2014-1994 = 20.
[|Human|] 
How old was Dominik Volek when he made his Czech Extraliga debut?