Bot: It’s been a pleasure chatting with you today.
User: Likewise, this was strangely fun.
Bot: Feel free to come back any time.
User: Sure thing.
This sample starts with a last topic check, an opportunity to open up a new topic. After the user declines, the bot moves on to other pre-closing moves, including gratitude and a future contact offer. This proceeds smoothly. The bot says Goodbye, the first half of the final closing pair. When the user completes this pair with a Goodbye, the conversation has ended.