Mr. Pang: Hello is that Gold International ? 

Miss Lim: Yes, May I help you ?
Mr. Pang: I'd like to speak to Miss Woo.
Miss Lim: Miss Woo is in a meeting just right now. I'm the Receptionist Miss Lim, may I ask who is calling, please ?
Mr. Pang: Sure. My name is Mr. Pang, Purchasing Executive of D&D Trading.
Miss Lim: Mr. Pang is there anything I can do for you ?
Mr. Pang: Yes. I had ordered 400 boxes of moon cake with from your company, since however, the goods are not delivered (I still haven't received the goods/I have yet to receive the goods) , so I am calling Miss Woo for further details.
Miss Lim: May I know when did you ordered those mooncakes ?
Mr. Pang: I ordered them on last week Monday , on May 16.
Miss Lim: Hold on a moment, let me note down the details.
Mr. Pang: Ok, no problem.
Miss Lim: May I know your order numbers?
Mr. Pang: Sure. The numbers is GI1234.
Miss Lim: Ok. I will reply notify Miss Woo later.
Mr. Pang: Thank you. I hope you can immediate reply to Miss Woo  notify/let her know immediately, because those goods are urgently needed in this week Sunday for Mid-autumn Festival promotion.
Miss Lim: Sure. Could you give me your contact number, your available time and your full name?
Mr. Pang: My phone number is 016-7634150, available time is (and I am available from) 1pm until 5pm and my full name is Pang Min Hao.
Miss Lim: I see. Mr. Pang, I will reply to notify Miss Woo as soon as possible.
Mr. Pang: Ok, Thank you.
Miss Lim: You are welcome. Is there anything else I can do for you ?
Mr. Pang: No. So I'll leave this to you, goodbye.
Miss Lim: Goodbye. Have a nice day.

greens are suggestions :):)