1/ Telephone: He/she is not in right now, may I know who is calling?
2/ In the restaurant: Is this seat (table) been taken?
3/ In the office: Please give me a minute (or: please hold on), I'll go and looking for him.
1)Have a conversation in the telephone:He now not Be pleasing ask here who find him
2)Have a conversation in the restaurant:Excuse me, have a person to sit?
3)Have a conversation in the company:Please wait a minute, I find him now
1. Telephone conversation: He/she is out now, may I know who is calling?
2. Conversation in the restraurant: Is this table available?
3. Conversation in the office: Please wait a while and I'll look for him now.
1) HE/SHE IS NOT HERE NOW, WOULD YOU MIND TELLING ME WHO ARE YOU?
2) EXCUSE ME, IF HERE ANYONE SITING?
3) WAIT FOR SOME MINUTES, I AM GOING TO FIND HIM/HER.