Mapping seach cities by name - elasticsearch

Question

I'm building an autocomplete input to search in a city database.
When I type "Wash", I'd like to propose Washington. Now when I type "Wash" I have nothing, With "washingt" ES found "washington".
I'm using FOS elastica.
mapping:
indexes:
cities:
finder: ~
use_alias: false
settings:
analysis:
analyzer:
text_analyzer:
tokenizer: 'whitespace'
filter: [ lowercase, trim, asciifolding, elision, name_filter ]
filter:
name_filter:
type: edgeNGram
max_gram: 100
min_gram: 2
properties:
zipCode:
type: keyword
name:
analyzer: text_analyzer
ES requets:
{
"query": {
"query_string": {
"query": "washingt",
"fields": [
"name",
"zipCode"
]
}
},
"from": 0,
"size": 1000
}
Any ideas what I'm missing?
Edit:
POST cities/_analyze { "field": "name", "text": ["washington"] }
"tokens": [
{
"token": "w",
"start_offset": 0,
"end_offset": 10,
"type": "<ALPHANUM>",
"position": 0
}
,
{
"token": "wa",
"start_offset": 0,
"end_offset": 10,
"type": "<ALPHANUM>",
"position": 0
}
,
{
"token": "was",
"start_offset": 0,
"end_offset": 10,
"type": "<ALPHANUM>",
"position": 0
}
,
{
"token": "wash",
"start_offset": 0,
"end_offset": 10,
"type": "<ALPHANUM>",
"position": 0
}
,
{
"token": "washi",
"start_offset": 0,
"end_offset": 10,
"type": "<ALPHANUM>",
"position": 0
}
,
{
"token": "washin",
"start_offset": 0,
"end_offset": 10,
"type": "<ALPHANUM>",
"position": 0
}
,
{
"token": "washing",
"start_offset": 0,
"end_offset": 10,
"type": "<ALPHANUM>",
"position": 0
}
,
{
"token": "washingt",
"start_offset": 0,
"end_offset": 10,
"type": "<ALPHANUM>",
"position": 0
}
,
{
"token": "washingto",
"start_offset": 0,
"end_offset": 10,
"type": "<ALPHANUM>",
"position": 0
}
,
{
"token": "washington",
"start_offset": 0,
"end_offset": 10,
"type": "<ALPHANUM>",
"position": 0
}
]
}