生成一个简短的对话，其中包括至少两个人物，以及他们正在进行的活动。
A: Hey John, what are you up to today?
B: Not much, just cleaning up around the house. What about you?
A: I'm heading to the gym for a workout. Wanna join me?
B: Sure, that sounds great. Let me finish up here and we'll go together.