@Erica113 So you went to your calendar and selected dates to block, right? Go back to the calendar and select the dates and select "available". That should do the trick, unless you are using a device and there is a glitch.
For your consideration, when your availability to respond in a timely way is compromised, it might be better to just "snooze" your listing until you are available. Snooze option in the same place you see Listed. Make sense?