'I'll be ready.'
Hearn last week said he was struggling to pin down an opponent for Joshua because they were all wanting 'a fortune' to get in the ring.
Bulgaria's Kubrat Pulev is tipped to get the nod with Parker set to fight on the undercard and perhaps face Joshua next year.
But Joshua is not in constant contact with Hearn to find out the latest.
'He mentions a name. I'm like, "No problem". There's not a lot to talk about,' Joshua said.
'I'm not like, "How does he look? Can we fight this guy? Why don't we..." That's not my interest. "Eddie, who we fighting?" "We've got this guy". "OK, cool, no problem". I just get on with it.
'He's a normal geezer, just like you, just like me. He just has a job to do. He's a really nice guy, business-minded, very intelligent, comes from a good family household, his dad was a promoter.
'He's done a good job to be part of bringing boxing back to where it is. He's done amazing things.'
Over the English summer, Joshua worked as a pundit for BBC during the Olympics in Brazil and took inspiration from USA swimmer Michael Phelps, who gave him advice.
'He has been through a lot,' Joshua said. 'The good and the bad. He's achieved a lot. I spoke to him. He told me to be dedicated.
'How he approached 2012 was a lot different to how he approached 2016, and you could see the difference in results. Get yourself away and grind.'