Snowflake dips after report says co to buy Observe for $1 bln
** Cloud data analytics firm Snowflake's SNOW.N shares fall 1.7% to $221.18 ** The Information reports co is in talks to buy app monitoring startup Observe for $1 bln ** Deal expected to be biggest for SNOW - report ** Observe's tools help detect and resolve issues in app systems ** Including session's moves, SNOW up 43.5% YTD (Reporting by Utkarsh Tushar Hathi) ((utkarshtushar.hathi@thomsonreuters.com))