Difference between Reply x Answer x Response

I have a question about conversation in english… i’m only a recently student of english, then I’ve got a lot of question.

If I understood, in a conversation face to face or in some social media, when we ask for something, basically there are 3 ways to be answered:

• an answer:
• a response
• a reply

which one applies in a conversation and why? abd what is the difference between them?