719 Is it urgent?
721 Could you tell me who called you?
723 He is not at his desk now. He is out now.
724 The president is out now, but he'll be back soon.
725 I'm sorry, but the person in charge is not here now.
726 The person in charge is out now. I'll have him call you back.
727 The person in charge is out now. Could you call again later?
728 The person in charge is in hospital. I'll have her call you when she's back.
729 He is sick leave for a while.
735 I couldn't catch what you said. Could you speak more slowly?
736 I understand the first item of business, but I don't understand the second one.
737 We don't have such a name in Japan.
738 I can't explain the project in detail. My boss will tell you, but he's out now.
740 I'm sorry that I can't answer your questions completely.
742 The person in charge will call you back later.