I want dropdown list of suggestions as users type on the text box.
And you can’t have it, this is not something you can take 
But you can use it. Tell me have you spent any amount of time searching for this feature? The Ionic can do that out of the box.
For example, take a look at this tutorial: http://www.gajotres.net/ionic-framework-tutorial-5-master-detail-pattern/. It uses a remote source, but it can be easily replaced with local JSON, local storage or some kind of DB.