There are 25 search widgets, plus other shortcodes, that can be used to produce lists of properties.
The Search Widget plugin's manual can be found here. In it you can find information on how to build your own search forms based on the building blocks of the Search Widget plugin.
Most of these search forms don't include labels (e.g. Arrival Date). That's because, placed correctly, most people will infer the form's labels through it's context. Some of them do include labels because otherwise the input would be too ambiguous. Labels do exist within the form's markup, but they're invisible to non-screenreaders. If you want you can edit the html markup of the search widget and remove the class visually-hidden to make the label for the form visible to everybody.