Hi Steve,
"Thank you! automated here means the API service which we are purchasing (IE: Flight schedule), we also add up more useful information to make it unique, so we strongly believe that the content is not only unique and useful to readers."
I found find it VERY difficult for anyone to present a way in which this data above, described, can be unique.
Sure, it can provide some value, in the same way that sport scores are updated on lots of websites.
But does the content really provide value? Value means adding commentary, editorialism - something more - to what is already standard.
If the concept is large enough, you might be able to pull some higher authority links into place, giving the project lift and wheels in organic results, and then strategize on further ways to build.
I would be focusing initially on pitching the value of the site to older style websites and ancient directories, locating those through research and competitive back-linking. In fact, you should be prospecting and researching / bucketing this data now.
At the same time, start creating stellar new content, publishing often in your blog so that the percentage of "truly" unique content is increasing daily.
Hope this helps.