In baseball, both batters and pitchers dance with uncertainty, albeit from different angles. The pitcher is trying to fool the batter with an unexpected pitch (curve ball vs. fast ball vs. slider, etc.) in hopes it isn't hit. The batter is improving the skill of how to read the pitcher, the body language and the pitched ball early in flight in hopes making a hit. They work in opposition, each with the goal of triumph over the other.
Alternatively, we can use uncertainty for synergy to reach common goals. We can develop a skill of receiving uncertainty as a gift, something we see or know now, we didn't a moment earlier. The key is to accept it as such, and then use the new trajectory to add something meaningful to the flow. Accept, "Yes", and then add with "And". Yes, and...the roots of improv. Instead of winning, the goal of improv is to keep playing, and to create an interesting change in the process.
Some of the most memorable service exchanges are born from uncertainty and improv. Predictable is boring. Unexpected is interesting. Improv turns the interesting into delight. An artist skilled in seeing a new possibility despite the uncertainty, and then extending the service game to new, unexpected territory is known for thinking on her feet. She creates a pleasant surprise because it wasn't obvious. She can see what others don't, imagine a new possibility and act on it, all in the moment.
Certainty seems comfortable, the logical place to go. And it works with a lot of things, like buying gasoline, taking an airline flight or turning on our computer. But, we can't create unexpected delight from certain. This requires curve balls, and more importantly, a posture of seeking them out. Innkeeping isn't comfortable because it might not work. This is precisely what makes it worth doing, worth dancing with the discomfort, and making it a habit to say "yes, and".