The 1. service process is not designed to handle the additional requirements of customers. This is the deficiency of service process and service model design.

2. Whether the customer can respond to various demands in time depends on the mood of the service receptionist at that time or the influence of various factors. This is a question of service consciousness.

3. When the objective factors can't meet the current demand, how should the service personnel handle it, what communication method should be adopted, and what is the plan B, and finally get the understanding and satisfaction of the customers. This is a question of service skill.

4. If the waiter can effectively handle all kinds of service demands put forward by customers, instead of just providing standard services without temperature like robots, whether it can be reflected in the personal assessment and promotion system is a question of service management incentives.