“很高兴和你聊天”常见的英文表达有：
I'm really glad/happy to chat with you. （“chat”更侧重于随意、轻松的交谈）
It's been a pleasure talking to you. （这是一种比较正式、礼貌的说法，常用于交谈结束时）
I've enjoyed chatting with you. （强调享受交谈的过程）