A Delta Air Lines passenger claimed a flight attendant slapped him so loudly that it could be heard through noise-canceling headphones after he asked for a glass of water for his son.

Mohammad Shibli and his lawyers held a press conference on Tuesday announcing their plans to sue the airline for roughly $9.5million - a day's worth of the company's profits - over the alleged assault.

Shibli, his wife, and their sons, ages 4 and 2, were on a Delta flight from Atlanta to Fresno on July 29 when he claimed the unidentified female flight attendant slapped him across the face.

He said the flight was delayed for roughly 20 minutes and during that time his two-year-old son started crying for water.

Shibli said his wife tried asking for water first and when she was denied, he tried asking instead.