Textual Conversation

One of the things that I really don't like about texting is that there is seldom an actual end to the conversation. Instead of ending like an in-person conversation where two people say goodbye and walk away from each other, the textual conversation may end because one person drops their phone in the sink just as well as it may end with that same person being angry at the other, or maybe they just got bored and stopped replying. You never know because there is not really a beginning or an end. Shouldn't conversation be better than that?