Artificial intelligent assistant

"Kekkosema wa"? First post on JLSE. Sorry if this doesn't belong here... Sometimes on the train platforms in Tokyo or on Japanese television, I hear a phrase that sounds like "kekk-sema-wa." I'm still early in my Japanese studies and am having a hard time breaking it down to figure out what it means. Can someone help?

Maybe you're hearing ()[]{} [(o)kyaku-sama wa]. means "customer" and and you might already know as being honorifics.

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