while True:
    html = driver.page_source
    html_soup = soup(html, "html.parser")
    hour_container = html_soup.findAll("li",{"class":"available"})
    if hour_container:
        for hours in hour_container:
            driver.find_element_by_class_name("available").click()
                       html = driver.page_source
            html_soup = soup(html, "html.parser")
            hour_container = html_soup.findAll("li", {"class": "available"})
            if not hour_container:
                break
    driver.refresh()
    time.sleep(5)