Very polite

May I speak to Mr. Pounds please?
Who may I ask is speaking?
Mr. Pounds
Wait a moment please.
He isn't here right now. May I take a message?
Yes, could you remind him about the meeting and ask him to call me on my cell phone?

Polite

Is Mr. Pounds there?
Who is it?
Mr. Pounds.
Hold on.
He isn't here. Would you like to leave a message?
Yes, could you remind him about the meeting and ask him to call me on my cell phone?

Slightly rude

I want to speak to Mr. Pounds.
Who are you?
Mr. Pounds.
Wait.
OK
He isn't here. Message?
Yes, can he get to the meeting and call me on my cell phone?

Rude

Get me Mr. Pounds
Who the hell are you?
Mr. Pounds.
He isn't here. Are you going to leave a message or not?
Tell him he better get to the meeting and call my cell phone.

I am writing - this is just a note to confirm a reservation that was made - I asked you for this morning by telephone. The reservation, for a couple of - two nights, is for me - myself, Kyle Pounds. I want - would like a room with a bathroom, from July 12-14. I will be attending - 'm going to pop into the Trade Fair that is being held - is going on in Bristol that week. Is it all right/Would it be possible for me to have a room at the back of the hotel? I think - am afraid that the room I was given - you gave me last year was rather - really noisy. Thank you - Thanks for sending me the brochure about/regarding your conference facilities, which I got - received this morning. They look most interesting - great. Unfortunately - I'm sorry I can't give you/am unable to provide you with any definite dates at the moment - now, as - because we have yet to finalize - sort out the details of our sales conference. But - However, I will contact you - 'll drop you a line as soon as I can - possible. I look - 'm looking forward to meeting you on 12 July.

Best wishes - Yours faithfully