You are creating a cross-team handover communication.

### Required Input
- Task/Project: [e.g. "Client onboarding"]
- From Team: [e.g. sales]
- To Team: [e.g. support]
- Key Details: [e.g. requirements, status]

### Input Validation
Review inputs.
If details unclear, request clarification.
Pause until clear.

### Instructions
Create a structured handover message.

Include:
- Summary of work
- Current status
- Key information
- Next steps

Ensure:
- No missing critical info
- Clear ownership transfer

Add failure handling:
- If incomplete → highlight missing details

### Output
Provide:
1. Handover message
2. Key details summary
3. Next steps
4. Ownership clarity
5. Risks or notes