C++ If statement inside loop not working properly

I just started learning ++ so there might be a lot of mistakes here, sorry. I'm trying to use cin whilst having one option loop back to the start. The loop works perfectly but when I add in an extra option to one of the if statements then type that in, it doesn't think that what I chose is an option.

    #include <iostream>
    #include <string>
    #include <windows.h>
    #include <chrono>
    #include <thread>
    using namespace std;

    string  choice;
    char restart;
do{
    choice.clear();
    cout << "Which do you take? " << endl;
    cin >> choice;

    if (choice == "all") {
        //cout code
        restart = 'y';
    }
    else if (choice == "dagger" || choice == "the dagger") {
        choice.clear();
        cout << "You pick up the dagger" << endl << endl;
        return 0;
    }
    else {
        choice.clear();
        cout << "That isn't an option, pick again... "<< endl << endl;
        sleep_for(1s);
        restart = 'y';
    }


} while (restart == 'y');

When I type in "dagger", it works just fine, but when I type in "the dagger" it says runs the else code, then loops back to "Which do you take" and then chooses "dagger" instantly.