Hi {customer_name},

Thank you for booking an appointment with {business_name}. Please note that your appointment request is currently pending approval. We will review your request shortly and send you an update. Here are the details:

Date: {booking_date}
Time: {booking_time_start}
Service: {service_name}
Staff: {staff_name}

If you have any questions or need to make changes, please feel free to contact us.

Thank you for choosing {business_name}. 

Best regards,
{business_name}