import random as rnd

def ll_insert(head, name, phone):
    new_node = {'name': name, 'phone': phone, 'next': None}
    
    if head is None:
        return new_node
    
    
    current = head
    while current is not None:
        if current['name'] == name:
            current['phone'] = phone
            return head
        current = current['next']
       
        
    new_node['next'] = head
    return new_node