Complex sentence: The 700 series was introduced on Tokyo-Hakata "Nozomi" services on March 13,1999, coinciding with the opening of Asa Station, and on March 11,2000,700 series trains were introduced on "Hikari Rail Star" services.
Split into simpler sentences: The 700 Series Shinkansen was introduced on Tokyo-Hakata "Nozomi" services on March 13,1999, coinciding with the opening of Asa Station. On March 11,2000, the new 700 Series trainsets were introduced on "Hikari Rail Star" services.