Step-by-step explanation:
In this case, the ideal would first be to be cordial with the customer, apologize for what happened and look for solutions that make the customer feel that the establishment is concerned with offering quality service.
Therefore, the attendant must readily be willing to exchange the cold food received and offer some courtesy to compensate for the problem, such as offering a free drink or a discount for the next trip to the restaurant.
That way, the customer will be able to understand what failures can happen, but how the restaurant deals with them is what makes the difference, and then feel satisfied with the solution to their problem and return to the restaurant to get a better experience.