Would be good to have a third party option that people that make bookings on behalf of others could use that allow them to add their details. We can currently do it when we make bookings into diary or by providing concierge services. However for the average PA making a booking for a boos it causes an issue. example being - A PA makes a booking for her boss and puts her email in the filed but his phone number. Anytime in the future if that boss goes to make a booking himself, when he enters his phone number and his email it comes up as 'a valid email address is required' because it associates his phone number with his PA's email address.