merci d'etre venue ce soir
To say "I am coming" in French, say j'arrive. To say "you are coming", say vous arrivez or tu arrives if you know the person well.To say that you will come at a future time, use the future tense. For example: j'arriverai ce soir - I am coming tonight (literally, I will come tonight).
Merci d'être venu ce soir.
"merci d'être venu / venue" (pl. "venus / venues")
Merci
ce soir.
Que fais-tu ce soir? Means what are you doing tonight in French.
thank you -> merci She thanks you. -> Elle vous remercie.
Avec vous.
A ce soir !
Say "Not tonight, thanks."
No vienes esta noche. (you do not come tonight) No vas a venir esta noche. (You are not going to come tonight) No vendrás esta noche. (You will not come tonight) All of these could be interpreted as "you are not coming tonight".
First, you cannot say "thanks for accommodation." It would be "thanks for the accommodation"-- but it still wouldn't make sense. Are you saying you are grateful you were invited to the celebration? In that case: Thanks for inviting me to the celebration tonight. Are you saying you are happy there was enough room for you to attend the celebration? That could be: Thanks for finding some room for me to attend the celebration tonight.