Dear Finnair Customer Service,

I am writing to express my disappointment and frustration with the lack of sparkling water on my recent flight with your airline. As a frequent flyer with Finnair, I have come to expect a certain level of service and attention to detail, but unfortunately, this was not the case on my last flight.

Specifically, I had requested sparkling water during the beverage service, but to my surprise, the flight attendant informed me that there was no sparkling water available on the flight. This was incredibly disappointing as I had been looking forward to enjoying a refreshing glass of sparkling water during my journey.

Furthermore, I found it concerning that such a basic beverage option was not available on the flight. As a paying customer, I expect to have access to a variety of beverages, including sparkling water, which is a common drink choice for many people.

I hope that you take my feedback seriously and take steps to ensure that such a situation does not occur in the future. I look forward to hearing from you and hope that you will take the necessary steps to improve your service.

Sincerely, [Your Name]