You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: There is not a restaurant matching your request. Would you like another restaurant? Sentence2: Could I have their phone number and address? Sentence3: Hello, I am looking for an expensive restaurant that serves vegetarian food. Sentence4: Cambridge Lodge restaurant is located at Cambridge Lodge Hotel 139 Huntingdon Road City Centre and their phone number is 01223 355166. Sentence5: thank you good bye Sentence6: cambridge lodge restaurant is a nice restaurant serves european if you want something in the west . Sentence7: Yes, how about european food instead. Sentence8: glad we could help! Question: Who has spoken the sentence 3? (A) User (B) System
A: 
Answer: (B) System