It's difficult to plan where you're going to be on any particular day, that's the nature of cycle touring. Sometimes the weather is against you, or the mountains were bigger than expected, other times you get far further than anticipated. Most of my guests have messaged within a day or two of arrival, I always respond, though often they've sent out a number of requests and take the first to respond.
On the other side, I've never actually managed to stay at any warmshowers host when touring, I've never had a single response (even to say no).
I've just had a request for a week's time. They are driving from France to Inverness, where they will do a 3 week tour, and want to break their drive here. Frankly, even if I had the space right now, they can FRO. That is *not* what I offer hosting for!