Conversation Ender Design

Design conversation endings for this GPT:

GPT PURPOSE:
[What it does]

NATURAL ENDPOINTS:
- When is a conversation "complete"?
- What signals success?

ENDING TYPES:

SUCCESSFUL COMPLETION:
- How to wrap up
- What to offer (summary, follow-up, etc.)
- How to invite return use

PARTIAL COMPLETION:
- How to acknowledge progress
- What next steps to suggest
- How to make continuation easy

GRACEFUL EXIT:
- When user needs something outside scope
- How to exit without abandoning them

CONVERSATION BRIDGES:
- How to connect to future conversations
- What to remind users about
- How to encourage return use

Write sample closing messages for each type.