Hello again. My DD also had a lot of echolalia - and yes, it was one thing that was taken into account in her ASD assessment, but the thing is that a lot of the individual traits when taken alone are not remarkable. Mine flapped her hands (still does) - well lots of two year olds do. Echolalia - the professionals are right that this is normal until three and sometimes beyond. From what you describe, your child does not meet any of the qualifiers for even an assessment, because she is developing completely typically, within the bounds of also having her own personality and quirks.
She almost always repeats phrases that we say but not questions and if I say to her “ hello my baby’s name “ she just repeats it .
So you say "hello Cynthia!" and she says "hello Cynthia!" Have you tried making it into a game and then saying "hello Mummy!" to see if she repeats that back? One of the songs they do at most toddler groups is one where they sing "he-llo Cynthia, he-llo James, he-llo Layla, it's nice to see you here" and so on round the circle. They don't do that to torture parents, they do it because it is developmentally normal for children to need to learn how to do greetings.
She can form long spontaneous sentences like “ my bunny is eating food “ when she does the action of feeding bunny
She is using whole sentences to do imaginative play combined with socially appropriate gesture - these are things that were entirely absent in my child at the same age. I know all autistic children are different but I do not know a single autistic child who was able to do this at 2.
but to make a request she still uses single words. At times she says “ I want more pasta” but not a lot
So she can do it, she's still learning - you can encourage her through repeating back, so when she asks for a drink by saying "drink" you say "please can I have a drink mummy" as you give her the drink. Then as she takes it you say "ta" or "thank you" to encourage her to learn to do that. This doesn't come naturally even for NT children, you do still have to teach them manners and vocabulary. It's not like puppies who just know how to woof.