He wants to join, otherwise his agent wouldnt be flying over. He will listen to the contract offer and the plan for him. It is for us to convince to join him. He would like to stay, but once he realises that he is better off here and the role we can give him, he will happily take it. I doubt Aguero and Silva dreamt about City, but in the end they joined because of money and project.
When Manchester United invite you to talk money, as an agent you have that conversation. Whether or not your client is serious about joining them is not nearly as important as getting offers on the table for future negotiations with any other club.