Solutions:
He said, "I wish i could talk to my father".
He wished he could talk to his father.
Ahmad said that if he were
was him/me, he would have accepted the offer.
He advised me to take care of my luggage./ He said that i had better take care of my luggage.
"Had you informed me earlier", said Bilal, "i would have received you at the station"
sir your this sentence dont look correct.
i think it should be like this
"if you had informed me earlier", said Bilal " i would have received you at the station"
2nd thing if any sentence start with question is, am, are, have has had etc, than we use" if" and "whether" and " that " is not used in that sentences.
i hope now you understand my query.
u havent given me marks