If there’s a tiny bit where you forgot to add if it was a ‘he said’ or a ‘she said’ that’d be beneficial but for example he told me that he would see me the following day is indirect this is because if the reporting verb is in the past tense then the modals like [will] change
So the answer would simply be he told me that he would see me the following day (Or if it’s a she replace the he with a she)