Read and manipulate AIML in C#

I have a AIML file that I need to interact with in C#. How do I load the document and use c# to query the file from the user input.

<category>
  <pattern>WHAT IS YOUR NAME</pattern>
  <template>My name is John.</template>
</category>

The user input would be the pattern. I need to be able to query the file with the user input and return the corresponding template.