Please don't stand on ceremony
请大家不要拘束

stand on ceremony
拘束；拘于礼节；讲究客套
As we are old friends,it's totally unnecessary to stand on ceremony.
都是老朋友，实在没必要这么客气。
Then I will not stand on ceremony.
那我就不客气了。

A:It's very nice of you to invite me.
你真是太好了，请我来做客。
B:I'm very glad you could come,Mr.Liu,Will you take a seat at the head of the table?It's an informal dinner,please don't stand on ceremony.Mr.Liu,would you like to have some chicken?
刘先生，您能来我很高兴。请上坐。这是一次家常便饭，请大家不要拘束。刘先生，要吃点鸡肉吗？
A:Thank you.This is my first time to come to a Chinese restaurant.Could you tell me the different features of Chinese food?
谢谢。这是我第一次来中餐馆。请给我讲讲中国菜的不同特色好吗?
B:Generally speaking,Cantonese food is a bit light,Shanghai food is rather oily,and Hunan dishes are very spicy,having a strong and hot taste.
一般来说，广东菜清单一点。上海菜比较油腻。湖南菜香味浓。辣味很重。
A:Chinese dishes are exquisitely prepared,delicious and very palatable.They are very good in color,flavor and taste.
中国菜做的很精细。色，香，味俱全。
B:Mr.Liu,would you care for another helping?
刘先生，再来一点吧？
A:No more,thank you.I'm quite full.
不了，谢谢。我已经很饱了。
B:Did you enjoy your meal?
您吃的怎么样？
A:It's the most delicious dinner I've had for a long time.It's such a rich dinner.
好久没有吃过这么美味的饭菜了。这顿饭太丰盛了。
B:I'm so glad you like it.
您很喜欢，我不胜荣幸。
A:Thank you very much for your hospitality.
谢谢你的盛情款待。