بما انو الجناح مو متوفر، عملنا حجز مسبق لغرفة مزدوجة.

بما انو means since, because, or given that. It introduces the reason for what follows.

So the structure is:

بما انو الجناح مو متوفر
= Since the suite is not available

This is very common in Levantine speech.

Yes, it is related. In Levantine, إنو / انو / أنو is a very common colloquial word that often corresponds to that or appears in expressions like since / because.

Here, بما انو is the colloquial equivalent of MSA بما أن.

A learner should mainly recognize this as a fixed spoken expression:

• بما انو... = since...
• لأنو... = because...

Spelling can vary a bit in informal writing, but the meaning stays the same.

In Levantine, مو is a very common way to say not, especially before nouns and adjectives.

So:

• متوفر = available
• مو متوفر = not available

In many Levantine varieties, مش can also be used:

• الجناح مش متوفر

Both are understandable and natural, though regional preference varies. In this sentence, مو متوفر sounds very normal.

Yes, الجناح literally means wing, but in hotel language it also means suite.

So in this context:

• الجناح = the suite

Arabic often uses the same word for both meanings, and the context tells you which one is meant.

Because الجناح is grammatically masculine, and the adjective has to agree with it.

• الجناح = masculine
• متوفر = masculine form

If the noun were feminine, you would use the feminine form:

• الغرفة مو متوفرة = the room is not available

So this is standard adjective agreement.

Because this is Levantine Arabic, not formal written MSA.

In everyday spoken Levantine:

• case endings are normally dropped
• tanween is dropped
• many formal structures are simplified

So instead of something more formal like:

بما أن الجناح غير متوفر...

you get the spoken Levantine version:

بما انو الجناح مو متوفر...

That is exactly what you would expect in natural speech.

Literally, it means:

• عملنا = we did / we made
• حجز = reservation / booking
• مسبق = prior / advance

So the whole phrase means:

we made an advance reservation

Using عمل as a kind of general do / make verb is very common in colloquial Arabic.

Yes, absolutely.

You could say:

بما انو الجناح مو متوفر، حجزنا غرفة مزدوجة.

That means: Since the suite isn’t available, we booked a double room.

The difference is mostly style:

• عملنا حجز = we made a reservation
• حجزنا = we reserved / we booked

Both are natural. عملنا حجز feels a little more like everyday service or hotel language.

مسبق means in advance or ahead of time.

So:

• حجز = reservation
• حجز مسبق = advance reservation / pre-booking

You are right that a reservation often already implies something ahead of time, but Arabic often uses an extra word like this for emphasis or clarity. It sounds especially natural in customer service, travel, and hotel contexts.

Because the sentence is saying:

we made a reservation for a double room

The لـ here means for.

So:

• حجز لغرفة = a reservation for a room

This works especially well after عملنا حجز.

But if you use the verb حجزنا, you often do not need لـ:

• حجزنا غرفة مزدوجة = we booked a double room

Both patterns are normal.

Because it describes غرفة, and غرفة is a feminine noun.

So the adjective must match:

• غرفة = feminine
• مزدوجة = feminine form of double

This is the same agreement pattern you see all the time in Arabic adjectives.

Because they are playing different roles in the sentence.

• الجناح = the suite
  This sounds like a specific suite that is already known in the situation.

• غرفة مزدوجة = a double room
  This is not presented as one specific known room, just a type of room.

So the definiteness matches the meaning:

• specific suite → الجناح
• non-specific double room → غرفة مزدوجة

A more formal version could be:

بما أن الجناح غير متوفر، أجرينا حجزًا مسبقًا لغرفةٍ مزدوجةٍ.

Main differences:

• بما أن instead of بما انو
• غير متوفر instead of مو متوفر
• more formal verb choice like أجرينا
• case endings in careful formal writing

But for spoken Levantine, the original sentence is very natural.