State the purpose, suggest a time and place, and ask for confirmation. If you decline, offer an alternative when possible.
Practical examples
Are you free on Wednesday afternoon?
هل أنت متفرغ بعد ظهر الأربعاء؟
Could we meet at the café near the station?
هل يمكننا اللقاء في المقهى قرب المحطة؟
Friday works better for me.
الجمعة يناسبني أكثر.