Which phrase is appropriate to ask a passenger when providing assistance?

The phrase "How may I assist you?" is appropriate when providing assistance to a passenger because it conveys a professional and courteous tone. This expression demonstrates readiness to help and invites the passenger to specify their needs or concerns in a respectful manner. The phrasing suggests a willingness to provide tailored support, making it clear that the flight attendant is dedicated to ensuring the passenger's comfort and satisfaction.

While other phrases may express a desire to help, they may lack the same level of formality or specificity. For instance, "Can I help you?" is somewhat casual and may not fully engage the passenger to articulate their particular needs. "Are you okay?" can be perceived as more informal and might not address specific assistance beyond basic wellbeing. "What do you need?" is direct but may come off as slightly abrupt, lacking the politeness that enhances customer service interactions.

Overall, "How may I assist you?" sets the tone for a professional exchange, making it the most suitable choice in a customer service context like that of Southwest Airlines.