You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: There are not any with wifi. Would you like me to checked higher rated options? Sentence2: No, thanks. Are you sure you can't find 1 star hotels? Sentence3: Hello, could you tell me if there are any 1 star lodging establishments that offer free wifi? Sentence4: No. I don't have a price preference. Sentence5: no that will be all. Sentence6: All right. Thank you for the Cambridge TownInfo Centre. Have a nice day. Good bye. Sentence7: Can I look up anything else for you today? Sentence8: I need a train on the same day leaving Cambridge Sentence9: In that case, I would recommend alexander bed and breakfast. Sentence10: What about 4 star hotels? Sentence11: Okay, from where? Sentence12: Your booking was successful, your reference number is: VZPWHWLV . Is there anything else I can assist you with today? Sentence13: Yes, there are quite a few. Did you have a particular price range in mind? Sentence14: Okay! Where are you going? Sentence15: That sounds great can you book it for 7 people? We're staying 3 nights and want to check in Wednesday. Sentence16: No thank you that will be all Sentence17: I'm sorry, I double checked but there are not any 1 star rated hotels available. Can I help you find something else that may be suitable? Sentence18: i am going to cambridge Question: Who has spoken the sentence 6? (A) User (B) System
A:
Answer: (A) User