The Cherries starlet is hoping to feature in one or both of the forthcoming friendly matches against the Netherlands and Italy for Gareth Southgate's side after being named in the squad off the back of some strong performances this season.
The former Leeds youngster was in the previous England squad but only as a late call-up and never got on the pitch.
The 21-year-old is desperate to make his senior international bow having captained the England Under-20s to World Cup glory last summer as he looks to secure a place on the plane to Russia.
"The first time I just got thrown in towards the end of the camp, but that was good for me to get to know the lads and how they work, but this time it definitely feels different," Cook told Sky Sports.
"Coming in from the start has been emotional for my family, but it's a great achievement and I'm just taking it all in.
"A lot of the fans have told me [no Bournemouth player has before represented England] but if it happens for me personally it will be a massive achievement for my family as well and the club - it will show all the hard work we've put in over the last year."