Congratulations on getting your friend interested and prioritizing on yoga, health and wellness ! You can request her / him to create a MyYogaTeacher account and then schedule sessions at convenient times.
Please share with her or him a referral link to signup for service. Here is where you can find link to share with your friend to create an account https://www.myyogateacher.com/refer
Your friend would get a 14 day trial as well with 3 free 1-on-1 sessions and thereafter can signup for a membership to schedule classes.