Answer: American Express Global Business Travel does not facilitate multiple passengers on a single record (PNR) - each traveler must have their own PNR. There have been some exceptions where a single trip record is required by certain airlines when an adult is accompanying a minor however, this would need to be arranged with an AMEX GBT offline Travel Agent.
Amex GBT Offline Travel Counselor: 1-669-272-1301 press option #2 (available 24/7)
Or, add the above number to WhatsApp & chat directly
Or, chat directly within the Amex GBT Mobile app (click here for guide)