you let them know how much of a shame that is, (whether it actually is a shame is another thing) and make them aware that you understand their situation.
So something like, "oh that's such a shame I was looking forward to you making an appearance, perhaps next time!"
if however this does not slot gently in with the way you usual articulate, then you might want to mould it to suit how you want to come across.
It is from the French phrase "répondez s'il vous plaît"(responday seel vu ple) which means "respond, if you please" or "Please respond." It is often written on an invitation to a party or social event, and requests a written reply from those invited if they plan to attend or not. In modern times, it might be understood that those who do not reply are not coming, and only those who reply will attend, however formal social etiquette suggests that both those who are and are not attending should respond.
"RSVP regrets only" means the person who sends the invitation assumes your attendance UNLESS you reply with your "regrets" that you can not attend. In other words, you don't have to reply if you are planning to go but you should reply and let the host know if you are not.
Say Thank You, That's What I Say.
Yes, it can be a complete sentence. Someone could say to you "You are looking well" and you could reply "As are you.".
When someone says "thank you" to you, you should reply by saying : "You're welcome"
Most event hosts ask attendants to send them an RSVP. Before going to the event, make sure to reply to the invitation with your name and how many people will be attending.
In everyday usage, "nothing went on" doesn't literally imply a lack of any action but a lack of anything significant or noteworthy. It is usually something someone would report briefly to a person who was not a part of an event, conversation or meeting. An extremely casual reply, it is often used by someone trying to escape further questions about details.
There is no problem with reply to an old tweet by someone famous.
None
RSVP is the standard Party Reply and it is an initialism derived from the French phrase répondez s'il vous plaît, meaning "Please respond".
action reply
"I am well, and you?"
Thanks for the greetings
When someone wishes you a Happy Birthday, you should reply with "Thanks a lot".
When some says "wassup" you would reply as if someone asked you " what's up."
yes
jazakallah