个人委托书

尊敬的律师：您好！                                                                                                               我在广西东兴开了家货运信息服务部，营业执照正在办理中。就是专门为货主和货车司机，互相牵线并从中赚取一定的中介费的中介公司。（ 中介费都是对货车司机单向收取的）                                                                            国庆期间一位姓赵的货主老板委托我服务部帮他找一辆9.6米货车拉货去广西全州。我们经过签了份委托书。大概内容为：                                                                                                                             委托人：赵XX；受托人：XX货运信息部。双方身份证号码，手机号码。委托事项，要求，运输物品，目的地及运输价格。委托人签名。                                                                                                                   根据货主的要求，我帮他联系了一台桂C的货车。和司机签订了运输协议书一式三份，（甲方，乙方，介绍方各一份）并收取了司机的信息中介费。两天后货主找上门来，说我介绍的货车司机把他的货物擅自卖了。现在司机的电话打不通，人也联系不上。要我信息部承担相关责任，赔偿货物的损失，或者帮助他把货款追回。（货主每天上门来吵闹，货物价值约为6万元左右。）              经过了解，货车司机的确私自把货主的货卖了，并把所卖货款据为己有。而货主的货物涉及走私漏税，货主不敢报案。                                                                                                                                 请问：我信息部在这次事件中应该承担什么责任？货主的要求有法律依据吗？                                                 另外做为中介方，可以向相关部门对货车司机提起诉讼吗？                                                                                                                                                                                                          迫切希望得到您的帮助解答 。                                                                                                                            谢谢~~~!