It's so hard to connect you

First attempt

Receptionist: Good afternoon, this is DNM. How can I help you?
Ms. Mandel: Good afternoon. I'd like to speak to Mr. Miller, please.
Receptionist: Mr. Miller? Hold on, please. I'll connect you.
  (Connected)
Leo Miller: Mr. Miller speaking. Who's calling please?
Ms. Mandel: This is Ms. Mandel from BCM. Is this Henry Miller?
Leo Miller: What? Henry Miller? No, this is Leo Miller, in the Sales Department. Henry Miller is in the Customer Relations Office. I'm afraid you've dialed the wrong extension.
Ms. Mandel: Oh, sorry to have interrupted you. Can you give me Henry Miller's extension, please?
Leo Miller: Sorry, I haven't got a directory on hand now. Would you mind calling the switchboard again? I'm sorry not to be of more help.
Ms. Mandel: Oh, OK. It doesn't matter. I'll call back to the receptionist. Thank you, anyway.

Second attempt

Receptionist: Good afternoon. How can I help you?
Ms. Mandel: Good afternoon. This is Ms. Mandel again. I'm afraid you gave me the wrong extension just now. I want to speak to Henry Miller, not Leo Miller.
Receptionist: Oh, there are two Mr. Millers in our company. I'm very sorry I didn't notice that. I'll put you through right now. Please wait a minute.
Ms. Mandel: OK. I'm holding.
  (Phone rings. Nobody answers the phone. Ms. Mandel hangs up the phone.)

Third attempt

Receptionist: Good afternoon. How can I help you?
Ms. Mandel: It's me again — Ms. Mandel. I'm still having trouble getting through to Henry Miller. No one is answering his line. I really need to talk to Mr. Miller as soon as possible. We placed an order with you last week, but we have so far heard nothing about it. It's a rush order, and we need it urgently. Can you help?
Receptionist: Of course. I'll go and find him and ask him to ring you immediately. There may be a problem with his line.
Ms. Mandel: OK, thank you so much.

Fourth attempt

  (Mr. Miller is in his office. The phone line is connected.)
Ms. Mandel: Hello, Mr. Miller, this is Ms. Mandel. Thank you for ringing back. You are hard to get hold of!
Henry Miller: Oh, I'm terribly sorry for the trouble. I was in a meeting and I left my cellphone in my office.
Ms. Mandel: Oh, OK. Mr. Miller, I'm calling you about ...