Many of us are not men, so please do not use "sir" as a greeting.
Originally Posted by ramaraj
Remember to use capital letters at the start of your sentences.
I don't know what your part in blue means.
The person who runs a show is the MC or Master of Ceremonies. In the US, we call that person the "em-cee" for MC. You could also call that person simply "the host."
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.