我能替您捎个口信吗？May I take a message?
　　我会把口信转达给他的。I’ll give him the message。
　　我会告诉他你来过电话。I’ll tell him that you called。
　　我会尽力和他取得联系的。I’ll do my utmost to make contact with him。
　　你可以给他留个口信，他一有空就给你打回去。You can leave him a message, and he’ll get back to you the moment he’s free。
　　请让他给我回个电话。Please have him return my call。
　　我能留个口信吗？Can I leave a message?
　　都是些不重要的事，不用留言了。It’s all about something unimportant, so there’s no need to leave a message。

　　Leaving a Message
　　Frank：This is Frank speaking. May I ask who is calling?
　　Jane：This is Jane. I would like to speak with Mr. Wang, please。
　　Frank：I’m sorry, he’s not here at the moment. He’s gone to the International Business Center。
　　Jane：When do you expect him back?
　　Frank：I’m not sure. He didn’t say when he’d return. If you’d like, you can leave him a message, and he’ll get back to you the moment he’s free。
　　Jane：Yes, thank you. When he gets back, please let him know that Jane called and I need him to call me back。
　　Frank：Does he have your number?
　　Jane：Yes, he does. But I’ll give it to you again, 5-2-6-4-4-5-3-6.
　　Frank：That was 5-2-6-4-4-5-3-6, right?
　　Jane：Yes. Thank you very much。
　　Frank：You’re welcome。