How to satisfy the guest? How to solve any guest complain?

Kill them with kindness. Go a little above and beyond if you have to. Remember, they are only there for a short time.

Here are five strategies that will help you to solve a guest complaint in a smooth and professional manner:

1. Stay calm. When a customer presents you with a complaint, keep in mind that the issue is not personal; he or she is not attacking you directly but rather the situation at hand. “Winning” the confrontation accomplishes nothing. A person who remains in control of his or her emotions deals from a position of strength. While it is perfectly natural to get defensive when attacked, choose to be the “professional” and keep your cool.
2. Listen well. Let the irate customer blow off steam. Respond with phrases such as, “Hmm,” “I see,” and “Tell me more.” Do not interrupt. As the customer vents and sees you are not reacting, he or she will begin to calm down. The customer needs to get into a calm frame of mind before he or she can hear your solution—or anything you say, for that matter.
3. Acknowledge the problem. Let the customer know you hear what he or she is saying. If you or your company made a mistake, admit it. If you did not make a mistake and it is a misunderstanding, simply explain it to the customer: “I can see how that would be incredibly frustrating for you.” You are not necessarily agreeing with what the customer is saying, but respecting how he or she perceives and feels about the situation. An excellent phrase for opening up this particular conversation would be, “So, if I understand you correctly…” After the customer responds, follow up with, “So, if I understand you correctly, we were to resolve the problem by noon today. I can see how that must be frustrating for you.” Then be quiet. Usually, the customer will respond with “That’s right” or “Exactly.” By repeating to the customer what you think you heard, you lower his or her defenses, and win the right to be heard.
4. Get the facts. After listening, take the initiative in the conversation. Now that the customer has calmed down and feels you have heard his or her side, begin asking questions. Be careful not to speak scripted replies, but use this as an opportunity to start a genuine conversation, building a trusting relationship with your customer. To help you understand the situation, get as many details as possible.
5. Offer a solution. This happens only after you have sufficient details. One thing to keep in mind: Know what you can and cannot do within your company’s guidelines. Making a promise you cannot commit to will only set you back. Remember, when offering a solution, be courteous and respectful. Let the customer know you are willing to take ownership of the issue, even if it was out of your control. Take charge of the situation and let the customer know what you are going to do to solve the problem.

First of all i will listen to the customer what the complaint is about, and will find a way to solve the problem without saying no to the customer. also will follow up on the complaint with the managment & give the feedback to the customer until the problem get solved.