Find the next date after today's date

Hi there,
I have a sheet called "Bookings" where I have entries of pupils booked for driving instruction. The pupils all have an id from A1 to A5 and the ID is in column A. I want to be able to find the next booked date for a given user and paste it to a specific cell on the sheet. I can find the last booked date, but not the next one after today's date. Any help would be greatly appreciated.
Kind regards