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Our reservation form will help you see the hierarchy between these reservations and allow you to edit and save them in one shot.
If you want to enable, parent child reservations, go to settings to enable the add child button setting.
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Enable Parent & Child reservations
Go to the Settings tab in the GoMeddo app
Select Enable add child button
Press Save
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This will enable the new reservation form, with the + Child button where , allowing you can to add children. 
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Expose to external website or mobile app
If you want to expose Parent & Child reservations to an external website or mobile app, you will need to define Reservation Blueprints.