What is the sentiment of this news? Please choose an answer from {strong negative/moderately negative/mildly negative/neutral/mildly positive/moderately positive/strong positive}.

Shares of airline companies, including United Airlines Holdings Inc (NASDAQ: UAL), are trading higher in sympathy with Delta Air Lines (NYSE: DAL), which reported better-than-expected first-quarter EPS results. Delta Air Lines reported quarterly losses of $1.23 per share which.
mildly positive