Which action is appropriate if a guest shows signs of frustration?

When a guest shows signs of frustration, the appropriate action is to politely ask if they need assistance. This response demonstrates attentiveness to the guest's feelings and acknowledges their discomfort. It allows the guest to express their concerns and share the source of their frustration, enabling you to address the issue effectively. By engaging with the guest in a polite and caring manner, you foster a positive atmosphere and show that you value their experience. This proactive approach is essential in customer service, as it can help de-escalate tense situations and lead to a more satisfactory resolution.

The other choices do not effectively address the guest's feelings or needs. Ignoring them would likely exacerbate their frustration, while apologizing without offering help does not provide a solution. Additionally, directing them to a manager immediately may not be necessary unless the situation is beyond what you can handle, and it could make the guest feel their concerns aren't being treated adequately.