chat_history: ['I lost my mother to breast cancer several years ago and I am still grieving the loss.', 'I am so very sorry. Have you had time to talk about it', 'yes, I talk about it but it really does not help much. I pray a lot and that gives me some comfort']
sys_response: that's good prayer can comfort, maybe you should talk to your pastor
situation: I lost my mother to breast cancer several years ago and I am still grieving the loss.