Asking the schedule

A： What do you plan to do on the weekend？
    B： I don't know for certain.
    A： Can I see you sometime this week？
    B： I'm afraid my schedule is pretty tight.
    A： When are you leaving？
    B： Next Friday.
    A： Going to the party tonight？
    B： Sure thing.
    A： Where are you staying？
    B： I'm crashing with a friend of mine.
    A： When's the next train to Boston？
    B： Two-fifteen.
    A： When will you be back？
    B： This coming Tuesday.
    A： Will you be there this evening？
    B： Yes， I will.
    A： I'll come by， then.