帮忙编一段英语小对话

Tom:Hi,John,how you doin.
John:Good you?
Tom:Good.Do you have any plan for the summer holidays?
John:I can not make sure.Maybe I'll going to Tibet.
Tom:Oh,that's cool man.I heard about that is a very mysterious place,but the weather condition is bad.So,take care yourself.
John:Actually,I just care about how can I going to Tibet.I have going to drive my car.But my dad does not agree me to driving by my own.He wants me going to take airplane,I think that is boring.So,do you have any idea?
Tom:I think you'd better going to take areplane.You can not drive to arrive at Tibe before new semester,that's in my guess.
John:Come on man,you are kidding.
Tom：Sorry,I can trust you,but How can I trust your car?The car is too old.
John:...