Do you know these words?

• Oですが、Xさんは　いらっしゃいますか

  This is O speaking, may I speak to Mr./Ms.X?

• どちらさまでしょうか

  May I ask who's calling?

• XXの　Oさまで　いらっしゃいますね

  You're Mr./Ms. O of XX, aren't you?

• かしこまりました

  It would be my pleasure. ; Certainly.

• おいそがしいところ、おそれいります

  Thank you for your time.