Going on Holiday

carol:Hello, Sam. Come in.
tom:Hi, Sam. We're having lunch. Do you want to have lunch with us?
sam:No, thank you, Tom. I've already had lunch. I had lunch at half past twelve.
carol:Have a cup of coffee then.
sam:I've just had a cup, thank you. I had one after my lunch.
tom:Let's go into the living room, Carol. We can have our coffee there.
carol:Excuse the mess, Sam. This room's very untidy. We're packing our suitcases. We're going to leave tomorrow. Tom and I are going to have a holiday.
sam:Aren't you lucky!
tom:When are you going to have a holiday, Sam?
sam:I don't know. I've already had my holiday this year.
carol:Where did you go?
sam:I stayed at home!