请稍等英语怎么说

Hello ,B to C enterprizes,Kate's speaking.你好，这里是B to C公司，我是凯特。Hello,can I speak to Mr Brown.你好，麻烦找一下布朗先生。Alright, may I ask who is calling?好的，请问是哪位呢?This is Doctor May.我是梅医生。