Host: You have made a poor meal. Let me get you some more fish.
主人：你吃的不多，我再给你夹些鱼吧。

Guest: No, thanks. I have had enough.
客人：不用了，谢谢。我吃饱。

Host: What about some drink?
主人：那要喝点什么吗？

Guest: Please bring me a cup of coffee.
客人：一杯咖啡。

Notes:
made a poor meal 吃的不多