I wonder if you have had any plans tonight?
I wonder if you're doing anything special tonight?
Not yet for the moment.
May I invite you to have a dinner?/ Shall we have dinner together?/ Would you like to have dinner with me?
I am glad to come.
I am delighted to go with you.
I'm at your disposal.
That's very kind of you.
By what time should I be ready?
I'm sorry I can't come. I have already accepted another invitation. Thanks all the same.
Thank you very much. I'm delighted to go with you.
Thank you for your invitation. I'll be very happy to go.
How about we have a beef and tomato stew to start?
That sounds fine.
I'm allergic to beef, so that's definitely out.
Anything is OK.
Are there any types of food you really don't like?
No, anything is OK.
Yes, I'm not too keen on hot peppers or garlic.
Well, I'm allergic to seafood, so that's definitely cut.