How to create a New menu to add a text and pass it to local tomcat server

Hi all,When a player clicks on mrtkStart Button, it should allow him to enter his name and save it in tomcat server. I would like to know how to create a Small Window with Name as header and input text field which allows player to enter the name. Please guide me through this or share some links. I would like to learn.

Search for “Unity UI Tutorial”.