India, July 21 -- A California man says he is worried about returning home after a United Airlines employee allegedly threatened to call immigration authorities on him during a ticketing dispute at San Francisco International Airport (SFO).

As per NBC Bay Area, Julio Varela who is a resident of San Ramon, California, said the incident happened on July 14 while he, his wife and their two daughters were traveling to Montreal, Canada.

Varela said family arrived at the United check-in counter around 8:15am for an 11:40am flight to fix an issue with his daughter's ticket, which had her middle name listed in the last name field, as per People.

After waiting nearly three hours, an agent from a partner airline was close to resolving the issue,...