Ability to use office 365 outlook calendar to set alarm time based on first appointment of the day

It would be nice to be able to set the alarm X amount of minutes before the first appointment of the day. I use booking to allow my clients to book with me and i need to be able to get the alarm set based on my first appointment which bookings put in my office 365 outlook calendar. Waking up 90 or 120 minutes before, would allow me to get prepared and get to my client’s site.