The phrase "to expect a response" means that you are anticipating or waiting for someone to give you an answer or reply to something you have said or asked.
Sentences with «to expect a response»
You can't expect a response from anyone if you apply for a job on a weekend, so there is no sense in worrying. (exclusive-executive-resumes.com)
For several times I would send her an email late in the night and would get an immediate response even when I was not expecting a response from her at the same day. (dawngraham-porter.metrobrokers.com)
When experiencing an issue, nearly half of customers expect a response within six hours. (entrepreneur.com)