You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Q: Sentence1: Yes, is either of these hotels located in the north? Sentence2: What type of attraction would you like to visit? Sentence3: the phone number is 01223366611 and adress is gonville place Sentence4: No worries, I just need the address please. Sentence5: The pricerange for Gonville Hotel is expensive. Were you needing a guesthouse? This is a hotel. Sentence6: There are 2 hotels with 3 stars. They are both quite similar, but the Gonville Hotel has a little better reputation. Can I tell you anything about it? Sentence7: May I have the phone number and the exact area. Sentence8: Sure! I recommend the Clare Hall located on Herschel Road. What information would you like to know? Sentence9: The Alpha-milton guest house address is 63 milton road, postcode cb41xa. Are you looking for an attraction in the north also? Sentence10: Thank you, please provide what time you want to leave the hotel or time you want to arrive at Clare Hall. Sentence11: I think we're confusing each other. You said there was no 3-star hotel in the north, so I'm looking for a 3-star guesthouse in the north. Do you have that? Sentence12: Sorry. My system just refreshed. Alpha-milton guest house is a 3 star guesthouse in the north area in the moderate price range. It does not include internet or parking. Sentence13: How about a guesthouse with a 3 star rating in the north? Sentence14: I need the address and phone to them please. Sentence15: Thanks! I will also need a taxi please. Sentence16: There are two 3-star guesthouses in the north. One offers Internet and parking and the other doesn't. Would you like to book a room at one of these? Sentence17: I need a hotel to stay with a 3 star rating please. Sentence18: I am actually looking for a college anywhere in town. Can you recommend an interesting one? Sentence19: On second. Wait. What was the price range on that guesthouse? Sentence20: No they are located in the centre and the south. Sentence21: Clare hall is in the west part of town. Their phone number is 01223332360 should you need to contact them! Sentence22: No, thanks. I'm also looking for places to go in town. Question: Who has spoken the sentence 17? (A) User (B) System
A:
Answer: (B) System