I found this gem on another conlang site and thought I can join in.
Hello: Hejida
(This word actually exists on all levels of formality. From the colloquial -jida to the very formal hejida tahoj)
How are you?: Iti’il mi’aru sunreja? (literally: what is your state?)
My name is…: Xe’elu… (I am called…)
What is your name: Il’elu sunreja?
I am lost: Xe’ki’ta ladja’het (I don’t know my path)
Where am I?: Xe’aru sunra?
Where is the bathroom?: Himenju’het kivetu mi’aru sunra?
Where is my luggage?: Doky’tan’xe mi’aru sunra?
Where is the tourist center?: Nimedi’het neteva mi’aru sunra?
Where is the embassy?: Lentine’het’min kovomin’het’ny komanu mi’aru sunra? (representation of foreign governments is where?)
I am sorry: Viije (or if you are really, really sorry: demna’xe mi’oki’anik)
Please: (not really indicated by a word, but by grammar)
Thank you: texeki.
Help: Hariri’iln!
I don’t speak rejistanian very well: Xe’ma’ta ‘visko veka al rejistaniha.
I don’t understand: Xe’hadada’ta.
Speak more slowly: Il’lanja’visko sama alna.
It was my husband’s/wife’s idea to go here on vacation: Kenvasina’he’xe mi’la’tari ‘limesu ‘neteva namin neteva’het’xen.
Could you recommend a good restaurant?: Il’mesit’ma ‘ki lixama’het dary su?
more in the next installment…

Hey there! Long time no see! It’s really been quite a while. As usual, great post! Although I must say, I hope I don’t have to use many of the sentences here if I ever wander into Rejistan :p, for instance “Where is my luggage?” and “I am lost”. To be fair, I hope I never have to use those sentences in any country I go, hehe.
Cheers!