"Where are you going?" and "Now, I am at" are a curious mixture of "speakers". First, the app asks me, then I talk back to it... Resulting from this, one is a question, and one is a statement. I'd consolidate this in any case.
I (personally) would not simulate a dialog with the app. So I would not use questions. This leaves "I want to go to " and "Go to " as alternatives.
To shorten reading, I'd choose "Go to" and "Start from", preventing the complexity of complete sentences. (Do you need this translated as well? Sentence order differs and may pose problems since the location must be the last sentence part, and may sound awkward in some languages.)