CONFIRMATION OF SERVICE APPOINTMENT
Thank you for your prompt attention regarding our malfunctioning [PRODUCT, ex. Cold Elite Air Conditioner unit] and for arranging a service technician to arrive at our premises to perform a repair. I look forward to seeing [him/her] on [DATE, ex. Friday] at [TIME, ex. 2:00 PM].
I indeed look forward to having our [PRODUCT, ex. Cold Elite Air Conditioner unit] functioning properly again.