A: How are you doing today?

B: I'm fine.

A: What can I do for you?

B: I would like to cancel a check.

A: Is there a problem?

B: I wrote the check out for too much.

A: How much did you write it out for?

B: I wrote it out for $150.

A: How much was it supposed to be?

B: It was supposed to be for $100.

A: I'll cancel that check for you.

B: I really appreciate your help.