Question: Who is a waitress? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: The Wedding Singer Context: In 1985, Robbie Hart (Adam Sandler) is an engaging and entertaining wedding singer from Ridgefield, New Jersey. He is engaged to his long-time girlfriend, Linda (Angela Featherstone), who was attracted to him at a time when he dreamed of becoming a rock star. Robbie meets and befriends a waitress, Julia Sullivan (Drew Barrymore), at the reception hall where he regularly performs. Julia is also engaged, to businessman Glenn Gulia (Matthew Glave) and he promises to sing at their wedding. On their wedding day, Robbie's sister, Kate, informs him about Linda changing her mind about the wedding, leaving Robbie emotionally devastated and humiliated. Later that day, Linda visits Robbie and he confronts her for leaving him at the altar, rather than tell him the truth so they can cancel the wedding. She reveals that she stopped loving him when she found out that he lost his ambitions of being a rock star and instead became a wedding singer. Linda tells Robbie that after talking to her friends, she realizes she cannot continue lying to herself and ends their relationship. He tries to move forward with his life, but despair hinders his performances. Julia tries to cheer him up and later asks him to help her plan her own wedding. Robbie eventually agrees and their friendship blossoms. Meanwhile, as he spends more time with Julia, Robbie begins to realize how shallow Linda is. During a double date between Julia and Glenn, and Julia's cousin, Holly (Christine Taylor), Robbie learns that Glenn frequently cheats on Julia and does not plan to stop after being married. Julia and Robbie are increasingly confused by their deepening feelings for each other. Robbie tells Julia he has plans to retire from singing and pursue a more conventional career, thinking that will impress Julia. She becomes angry with him for assuming that she is marrying Glenn for his money (although she is under pressure from her worried parents to do just that so she will not tread water as they have). Dismayed, Robbie goes to a bar where his friend Sammy...
A:
Julia