What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
It seems like you have posted your question too early, it doesn't have much details on it that would fully help us understand your concern.
If you would like to display list of country and cities on your form, you can try one of our widgets on this page: https://widgets.jotform.com/category/mapping. The specific widget you might be looking for is the All states and cities widget, Show Map Location widget or Autocompleted Address widget.
To add a widget on your form, you can follow this guide: https://www.jotform.com/help/252-How-to-Add-a-Widget-to-your-Form
I hope that helps. Do let us know if you need further assistance on this.