Lookup table not working even after having examples in nlu.md

@PaulB @vipashadhiman11 right now I’m using this pipeline. Also, make sure you have enough examples from the lookup table in your training dataset.

language: en
pipeline:
  - name: ConveRTTokenizer
  - name: ConveRTFeaturizer
  - name: RegexFeaturizer
  - name: LexicalSyntacticFeaturizer
  - name: CRFEntityExtractor
  # added new
  - name: CountVectorsFeaturizer
  - name: CountVectorsFeaturizer
    analyzer: "char_wb"
    min_ngram: 1
    max_ngram: 4
  - name: DIETClassifier
    epochs: 50
    entity_recognition: False
  - name: EntitySynonymMapper
  - name: ResponseSelector
    epochs: 100