Chosen Solution

My service is fine because I’m able to call someone but they aren’t responding to what I’m saying. I’ve tried resetting the phone but to no avail.

you should replace your earpiece speaker

Try resetting your phone. If the problem persists, a factory reset could fix the issue. If all else fails you may need to replace the microphone.

Reset your phone or replace your earpiece speaker

My best bet would be, that you have damaged microphone.