Turkish Airlines Flight Attendant Behavior on My Flight from Cyprus to Ankara

I would like to report an issue regarding my flight from Cyprus to Ankara. We choose Turkish Airlines over competitors to receive better and higher quality service. However, I must tell that this was the first time I encountered such negative service. The flight attendant's sullen attitude and eye-rolling towards several passengers are unacceptable. As someone working in the human resources sector of the energy industry, I often investigate why even non-customer-facing staff are not smiling. Everyone can have a bad day; anything is possible. However, this should not be reflected in a customer service environment. I would like to mention that the flight attendant's name was Merve and request that this issue be communicated to the relevant individuals, and I receive feedback.