You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

[EX Q]: Sentence1: How about a swimming pool in the same area? Sentence2: I need a place in the east, please. Sentence3: That would be express by holiday inn cambridge. Would you like to book that? Sentence4: No, actually I do need to book the Holiday Inn Cambridge as long as it has free wifi. Sentence5: Um, no thank you. I think that's all I need for today! Sentence6: Thanks, do you know of any colleges near the hotel? Sentence7: Unfortunately I'm not finding any colleges near the hotel on the east side of town. Would you like me to expand my search to another area? Sentence8: The holiday inn cambridge has internet but I do not have any information on whether or not it is wifi or free. Sentence9: Great. Thank you very much for contacting Cambridge Towninfo Centre. Have a great day. Sentence10: Can we go ahead and book that for 5 people for 3 nights starting on Saturday? Sentence11: Can I get the entrance fee and phone number for the Abbey Pool please? Sentence12: We have 5 hotels that meet your request. Is there a specific area you'd like to stay in? Sentence13: Their phone number is 01223902088, and their entrance fee is not listed in our system at this time. Sentence14: Okay, I have you booked for three nights starting on Saturday. Your reference number is PDMS5WA1 . Sentence15: Thank you for using our service. Have we met all of your needs? Sentence16: I'm looking for a hotel in the expensive price range. Internet is not necessary. Sentence17: Yes! The Abbey Pool and Astroturf Pitch is on the east side of town, at pool way, whitehill road, off newmarket road. Can I help with anything else? Sentence18: Ok. That's all I need then. Question: Who has spoken the sentence 13? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: There are more than one hundred entries that match your requirements. What type of food do you prefer? Sentence2: I'm positive. There are however three hotels that have four stars that have free wifi, if you would like to view those options. Sentence3: A 4 star rating is fine, what do you have for that? Sentence4: The only French restaurant that fits your criteria is called Cote. They do not have any availability for Wednesday at 12:30. Sentence5: My pleasure. Have a great day! Sentence6: Wonderful! That's all I need. Thank you very much for your help! Sentence7: I prefer French Cuisine, can you find somewhere that will take reservations for 3 people at 12:30 on wednesday? Sentence8: Are you sure? I would prefer a 5 star hotel with free wifi. Sentence9: I have two in the west area and one in the centre area. Do you have a preference? Sentence10: Thanks I also need to find a hotel with a 5 star rating. Sentence11: Are there any expensive places to eat in the centre? Sentence12: That was a success. Your reference number is 2GY5ULLL . Sentence13: Can you try for 11:30 and give me a reference number please. Sentence14: The booking for the University Arms Hotel was successful, and your reference number is 414HUS87 . Sentence15: Unfortunately, I do not show any 5 star hotels. Would you like to try a different rating? Sentence16: The one in the centre area is fine. Can you please book it for 3 people, starting on Wednesday for 4 nights and can I please have the reference number? Question: Who has spoken the sentence 11? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: There are 7 museums in the west. My personal favorite is Cafe Jello Gallery. Entrance is free! Would you like more information? Sentence2: What is the phone number? Do they have free parking? Sentence3: Could you find me a hotel that is in the west with the same criteria? Sentence4: I am afraid we have nothing that matches your request. Would you like to try another area? Sentence5: Yes, they do have free parking, and the phone number is 01223304906 . Is there any other information you need? Sentence6: I found 5 hotels do you have a part of town you prefer? South, north, west or centre? Sentence7: sure, phone number is 01223312112 postcode is cb30af and the address is cafe jello gallery, 13 magdalene street Sentence8: I'm afraid there are no hotels that will meet your needs. Would you like to try a different area of town or price range? Sentence9: I'll also need a taxi to get between the two places, I'd like to leave Cafe Jello by 4pm. Can I have the car type and a contact number? Sentence10: Yes, can I have the postcode, address, and phone number for Cafe Jello, please? Sentence11: Could you help me find a 3 star hotel with free wifi in Cambridge? Sentence12: Yes, are there any museums in that area? Sentence13: Yes one more thing, I am looking for an attraction in the "architecture" category and I would like it to be close to the hotel please. Sentence14: I would like a hotel in the moderate price range in the centre of town. Sentence15: Sure thing! I have you booked for a blue bmw and the contact number is 07359941913. Can I help you with anything else? Sentence16: It sounds like Hobsons House is the perfect guesthouse for you. Would you like me to book a stay? Question: Who has spoken the sentence 7? (A) User (B) System
[EX A]:
Answer: (B) System