How I can set my set country with city select option form in our Website?

I have launched an education based HND Assignment writing help providing website and here I am facing the problem in contact or application form on which I want this if I select any country from an option so that city will automatically show the relevant city of that country. Someone help me to resolve this problem? I am doing mention below which problem we are both facing country and city select option. 

Hello alicephilip,

I checked the form but it is not a form created here in JotForm. But if you are planning to create a form like this using the form builder, you will need to create similar fields, one city field per country, and use a show-hide condition for a city field to appear in relation to the selected country value.

You can check out this guide to know more how to use show-hide conditions using a selected answer from a field: https://www.jotform.com/help/316-How-to-Show-or-Hide-Fields-Base-on-User-s-Answer

Thanks.