I feel so grateful.

我很感激。

I really appreciate it. 

我很感谢/感激

A really appreciate your invitation. 

我很感谢您的邀请。

Thank you for having me here. 

谢谢你邀请我来你这里。

Thank you for your hospitality. 

谢谢您的盛情款待。

Thank you for coming. 

谢谢你能来。

I want to first thank you for the wonderful dinner you arranged. 

我想首先感谢一下您安排的丰盛的晚宴。

Thank you for the hospitality of your company. 

谢谢贵公司的款待。

Thank you, the feast is so rich I have a pleasant evening. 

谢谢，晚宴很丰盛，我度过了一个愉快的夜晚。

Thanks for taking time out of your busy schedule to attend this banquet. 

感谢您在百忙之中抽空参加宴会。

经典对话

A: Hello. This is Daniel.

你好，我是丹尼尔。

B: Hello. This is Michael.

你好，我是迈克尔。

A: Do you remember me? I'm from Best company. 

你还记得我吗？我是来自贝斯特公司。

B: Oh, yes.

奥，记得。

A: The main purpose of my call to you is to thank you for your careful arrangements and hospitality last night. I had a very pleasant evening yesterday. 

我给你打电话的主要目的就是感谢您昨天的精心安排和盛情款待，我昨天度过了一个很愉快的夜晚。

B: Well, I'm glad you had a nice dinner time.

很高兴你有一段愉快的晚餐，时间

A: Yes. But, unfortunately, we didn't have a chance to chat. I mean I couldn't find a chance to talk to you last night when you were hosting so many guests. 

是的，但遗憾的是我们并没有机会聊天。昨晚你要招待那么多的客人，我都找不到机会和你聊天了。

B: It doesn't matter. We can find another time for coffee and chat.

没关系，我们可以再找时间喝咖啡聊天。

A: Okay, I'd love to. But we can go to dinner first, and then go for coffee because I know a Chinese restaurant. It's on me this time. 

好啊，我很愿意。不过我们可以先去吃饭，然后再去喝咖啡。因为我知道一家很好吃的中国餐厅，这次我请客。

B: Well, it's my favorite. 

哇，我的最爱。

A: Yes. I heard you like Chinese food, so I'd like to invite you to try it.

是的，我听说你喜欢中国菜，所以想邀请你品尝一下。

B: Thank you for being so thoughtful.

很感谢你这么体贴。

A: You're welcome. I also want to take this opportunity to thank you for your advice to me. 

不客气，主要我也是想借此机会感谢你曾经给我的建议。

B: You remember. I just expressed my thoughts.

你竟然还记得，我也只是表达了自己的想法而已。

A: Of course. I wouldn't forget the kindness of anyone to me. 

那当然了，我是不会忘记任何人对我的有好的。