Johnyboy18

Hi everyone, I intend to stay in Thailand for 90 days from January 2022 till April 2022. I understand that my best option would probably be to get a 60 day tourist visa which I will then extend another 30 days. My concern is will it be ok for me to book my return flight 90 days after my departure date? Since I only have 60 days to start off with, could the agent ask me why my return is after that period and possibly refuse entry to the country? Same concern for accommodation. I like to have everything sorted out before I get there so I would rather book online for my intended 90 days. Will this raise a problem with the officer? Best, Johnyboy