Android : i want to add more coloumn to the parse user table in parse database

// Set up a new Parse user
ParseUser user = new ParseUser();
user.setUsername(username);
user.setPassword(password);
user.put(phone, "phone no");

i have LREADY READED THE PARSE DOCS AND WHAT I GET FROM THEIR IS THAT I HAVE TO PUT KEY AND ITS VALUE LIKE THIS user.put(phone,"phone_no");

but it is not working please help me