Hey @franklin​! Daniel from Customer Support Engineering here 🔧 

You can filter bots and Outbound content to target users based on their location by adding an audience rule like "City = x, code = y". If you specifically want the user to select the location, you'll need to set up a custom bot and create some reply buttons that will follow up based on the users' choice. You can find more information on how to do this in this Help Center article.

Hope this helps 😁