请将以下对话总结成三句话，保留请求救援的主要信息：A: My car broke down on the highway, can you help? B: Of course, where are you exactly? A: I'm near the碑村收费站. B: Stay there, we're coming to assist you. What's your phone number in case we lose track of your location? A: It's 13800138000. Thank you. B: You're welcome. Keep your phone on. We'll be there soon.
user
A的车在高速公路上抛锚了，向B请求救援。A的位置靠近碑村收费站，B确认了A的电话号码为13800138000以便联系。B让A待在原地，保持手机开机，他们会尽快赶往现场提供帮助。
assistant