At Zurich airport, we are arriving on Delta from Atlanta (8 am) and my 70 year old mother is arriving on United from DC around (8:15 am). How is the easiest way to meet up with my mother so she does not get lost in the shuffle. Can we meet her at her United gate? Or, does Zurich funnel everyone into one international customs area? Or, are their more than one customs areas. Thank you for your help.