Irasshaimase (いらっしゃいませ): welcome. Said to customers as they come into a shop.
Kashikomarimashita (かしこまりました): I have respectfully understood. The humble way to accept a customer’s request.
Shōshō omachi kudasaimase (少々お待ちくださいませ): please wait a moment. The customer service manual of the city of Ikoma lists all three among its basic phrases, each said with a 30-degree bow.