お〜です details

hurry + honorific — states the esteemed person's present state in the shortest honorific shape there is

o isogi desu

honorific — states the esteemed person's present state in the shortest honorific shape there is

meaning: hurry

お客様きゃくさま、会員証かいいんしょうはお持ちもちですか。

okyakusama, kaiinshou wa o mochi desu ka.

Excuse me, do you have your membership card with you? formal

何なにかお探さがしですか。よろしければお手伝てつだいいたします。

nanika o sagashi desu ka. yoroshikereba o tetsudai itashimasu.

Are you looking for something? I'd be glad to help. formal

Examples

do you have; are you — asking or stating the present state of a customer, a guest or a superior

お客様きゃくさま、会員証かいいんしょうはお持もちですか。

okyakusama, kaiinshou wa o mochi desu ka.

Excuse me, do you have your membership card with you? formal

何なにかお探さがしですか。よろしければお手伝てつだいいたします。

nanika o sagashi desu ka. yoroshikereba o tetsudai itashimasu.

Are you looking for something? I'd be glad to help. formal

部長ぶちょうは今日きょう、もうお帰かえりだ。

buchou wa kyou, mou o kaeri da.

The department head has already left for the day. formal

先生せんせいは来週らいしゅうから海外かいがいにお出でかけです。

sensei wa raishuu kara kaigai ni o dekake desu.

The professor will be away overseas from next week. formal

お〜だ — the plain-style shape, used ABOUT an esteemed person rather than to them — 部長ぶちょうはもうお帰かえりだ。
お〜でしょうか — softer than ですか and the counter-service default — 何なにかお探さがしでしょうか。

It only works where the verb leaves a state to report: お持もちですか asks
what you have on you now. For a one-off act, the honorific is お〜になる
(お読よみになりました).

お〜になる
お〜になる reports the ACT and can name any point on its timeline (お帰かえりになりました); お〜です reports the STATE the act has left, so it asks about right now — which is why counter staff reach for the shorter お決きまりですか, though お決きまりになりましたか is equally correct.
ている
〜ている is the ordinary way to say a state holds, and it raises nobody; お〜です does the same job while raising the person it describes, which is why ていらっしゃる and お〜です compete for the same sentence and 〜ています cannot be used about a customer's state.

お〜する
The same お＋stem shell pointing at two different people — お持もちします offers to carry it FOR the esteemed person, お持もちですか asks whether THEY have it; swapping them offers to carry your own bag for yourself.

尊敬語
One of the honorific routes for a verb, alongside お〜になる and れる／られる — and the only one that shortens rather than lengthens, which is why counter staff reach for it all day.