When we answer our guests we either do it by phone and resolve their problem or question, or by message on email/airbnb platform. We find that our guests are very satisfied by the level of detail that we put on our answers. For example our directions from the airport are a full page with both public transport options and prices and other more private options like shuttles and taxis.
I hope that answer your question. Feel free to ask me any other question you may have.