<s>[INST] Sure! Here are the instructions I followed while writing the code:

"I need a program that creates a linked list of student information data structure. The student information data structure should contain the following fields: 
- First Name
- Middle Name
- Last Name
- Age
- GPA

I want the functionality to add a student, display existing students, search for a student by first name and last name, and delete a student by first name and last name.

Also, I want the functionality to create a new student with default values such as 'N/A' for First, Middle, and Last name; Age, 0; and GPA, 0.0."

I have written the code for this in C++. I would like you to review my code and provide me some feedback.

Here is the code I followed:

```cpp[/INST]