Dialogue: Problems with my keyboard.

A: Hello, this is Tim in IT.

B: Hi, Tim. This is Sara. I'm calling from the third floor. I've got a problem with my keyboard.

A: Good morning, Sara. Is it a standard keyboard or a wireless keyboard?

B: It's a standard one and the delete key is stuck. I've deleted a whole page of text!

A: Oh dear! So first, make sure you've saved all your work. OK, now unplug the keyboard from your PC. Next, turn it over and gently.

B: What? Are you sure?

A: Yes- if the keys have got dirt inside them, they sometimes get stuck.

B: OK... now what?

A: Now plug the keyboard in again. Press the enter key and see what happens.

B: Alright. Hey, it's working! Thanks.

A: Great!

B: Tim wait a minute. Now the s key isn't working. I'm pressing the key, but the symbol doesen't appear on the monitor.

A: Alright, I'll come and take a look. We'll try cleaning some of the keys. 

B: Thanks. I'm in room 312.