Is the realization of what was hoped for after praying to God a sign that the girl will be the questioner's destined partner, or is that considered an transgression in supplication? And what is the meaning of the statement of our master Zechariah: {My Lord, make for me a sign}?

Familiarity between young men and women in the workplace is a gateway to evil and corruption. The correct path to marriage is to propose to the woman through her guardian. If she does not accept your proposal, then seek another and hasten to marry to protect your chastity. Praying for certain signs to confirm the fulfillment of a request is not permissible. What the Prophet Zakariya (peace be upon him) requested as a sign was after the angels gave him the good tidings of a child, so that his heart might be reassured.