Given a conversation, detect the type of conversation it refers to. Output "casual", "business", or "informal".
- Person A: Wanna hang out this weekend? 
- Person B: Sure, what do you have in mind?
The type of conversation is casual.
Complete the following task based on the instruction and optional input provided.### Instruction:
Given a conversation, detect the type of conversation it refers to. Output "casual", "business", or "informal".

### Input:
- Person A: Wanna hang out this weekend? 
- Person B: Sure, what do you have in mind?

### Output:
The type of conversation is casual.