They are going for a vacation trip aka purchasing new furniture trip. I am chosen as the housekeeper. The house owner introduced her girl to me (someone who proposed to me before, and i delay her propose due to age and studies reasons). She offered me air ticket, accommodation for the vacation trip, in order to accompany her girl. I rejected the offer because i am booked 3 months before this, and my schedule are quite packed (seriously, my course mate are trying to buy me a dinner, and i have no time for them, sorry bout it).