xínglǐyuán huì bǎ xíngli sòngdào kèfáng.

This is a very common question because 行 has multiple pronunciations in Mandarin.

In 行李员, 行李 means luggage, and here 行 is pronounced xíng:
xíngli, xínglǐyuán

By contrast, 行 is pronounced háng in words like:

• 银行 = bank
• 行业 = industry

So the pronunciation depends on the word, not just the character by itself. In this sentence, you should memorize 行李 as a whole word pronounced xíngli.

行李员 is made up of:

• 行李 = luggage
• 员 = member / worker / staff person

So 行李员 literally means something like luggage staff member. In natural English, this is usually bellhop, porter, or luggage attendant, depending on context.

The important thing for learners is that 员 often appears in job titles, for example:

• 服务员 = server / waiter
• 售票员 = ticket seller
• 店员 = shop assistant

Here 会 is best understood as will.

In this sentence, it indicates what is going to happen or what the staff will do:

• 行李员会把行李送到客房。
• The luggage attendant will take the luggage to the guest room.

会 can have several meanings in Chinese, including:

1. know how to / be able to because of learned skill

   • 我会说中文。 = I can speak Chinese.

2. will / be likely to / be going to

   • 明天会下雨。 = It will rain tomorrow.

In your sentence, it is not really about learned ability. It is more about expected future action.

把 is used to bring the object forward and emphasize what happens to it.

The basic idea is:

• normal order: Subject + Verb + Object
• 把 order: Subject + 把 + Object + Verb phrase

So instead of saying:

• 行李员会送行李到客房。

the sentence says:

• 行李员会把行李送到客房。

This structure highlights 行李 as the thing being handled, moved, or affected.

A very rough way to think of it is:

• The luggage attendant will take the luggage and deliver it to the guest room.

The 把 construction is especially common when:

• the object is specific
• the action clearly affects it
• the verb is followed by something else, such as a destination, result, or complement

The pattern is:

Subject + 会 + 把 + Object + Verb + Complement

In this sentence:

• 行李员 = subject
• 会 = will
• 把 = marks the object being dealt with
• 行李 = object
• 送到 = deliver/take to
• 客房 = guest room

So the structure is:

行李员 + 会 + 把 + 行李 + 送到 + 客房

This is a very common and useful sentence pattern in Mandarin.

Grammatically, it is best understood as 送 + 到.

• 送 = to deliver / to take / to send
• 到 = to reach / to arrive at

Together, 送到 means deliver to or take to and reach that place.

Here 到 works as a complement showing the result or endpoint of the action. The luggage is not just being moved in general; it is being taken to the guest room.

Compare:

• 送行李 = deliver the luggage
• 送到客房 = deliver it to the guest room

So 到 adds the destination/result.

客房 specifically means guest room, especially in a hotel.

• 客 = guest
• 房 = room

So in a hotel context, 客房 is more natural and precise than 房间, which is a more general word for room.

Compare:

• 房间 = room in general
• 客房 = guest room / hotel room

Since this sentence is clearly about hotel service, 客房 fits the context better.

行李 can refer to luggage in a general sense, whether it is one bag or several.

Chinese nouns usually do not change form for singular and plural the way English nouns do. So:

• 行李 can mean luggage, a bag, or bags, depending on context.

If you need to be very specific, Chinese can add numbers or measure words, for example:

• 一件行李 = one piece of luggage
• 两件行李 = two pieces of luggage

But in your sentence, 行李 is naturally understood as the luggage in general.

Yes, that sentence is possible:

• 行李员会送行李到客房。

It is grammatical and understandable.

However, using 把 often sounds more natural when:

• the object is definite or already known
• the action changes its location or status
• the verb is followed by a destination or result

So:

• 行李员会把行李送到客房。

often sounds a bit more explicit and natural in this kind of service situation.

In short:

• without 把 = correct
• with 把 = very common and often more idiomatic here

Because 把 is not a normal content word like luggage or room. It is a grammar marker.

It does not have a single neat English translation. Instead, it signals a sentence pattern: the speaker is focusing on what happens to the object.

That is why learners often do better if they stop trying to translate 把 word-for-word. Instead, learn the pattern:

Subject + 把 + Object + do something to it

For example:

• 我把门打开了。 = I opened the door.
• 他把书放在桌子上。 = He put the book on the table.
• 行李员会把行李送到客房。 = The luggage attendant will take the luggage to the guest room.

In English, 把 often disappears in translation, but it still plays an important role in the Chinese grammar.

You usually put 不 before 会:

• 行李员不会把行李送到客房。

This means:

• The luggage attendant will not take the luggage to the guest room.

The order is:

Subject + 不会 + 把 + Object + Verb phrase

This is the natural placement. You do not normally put 不 directly before 把.

A simple way is to add 吗 at the end:

• 行李员会把行李送到客房吗？

This means:

• Will the luggage attendant take the luggage to the guest room?

You can also form an A-not-A question with 会不会:

• 行李员会不会把行李送到客房？

This also means:

• Will the luggage attendant take the luggage to the guest room or not?

Both are correct. The 吗 version is especially straightforward for beginners.