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

[EX Q]: Sentence1: Thank you for using the Cambridge Town Info Centre Services. I hope you enjoy your time in Cambridge! Sentence2: is it in moderate price range? Sentence3: Do you have anything in the moderate price range? Sentence4: Most of our nightclubs are right in the center of town. Kambar is my favorite. Sentence5: No, thanks. Can you find a gastropub restaurant in the centre, please? Sentence6: it is an expensive gastropub Sentence7: Yes, there's the the cow pizza kitchen and bar. Sentence8: They're located on Corn Exchange Street. Would you like me to make a reservation for you? Sentence9: Awesome! Can you provide me with the address, entrance fee, and postcode, please? Sentence10: The address is 1 wheeler street cb23qb and admission is 5 pounds, would you like their phone number? Sentence11: I am looking for something fun to do while in town. A nightclub would be nice. Sentence12: What is their address? Sentence13: backstreet bistro is an expensive gastropub in the centre area. Would you like more information? Sentence14: No, I just need information for today. You have answered all of my questions. Thanks so much. Bye. Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: Can you tell me more about gourmet burger kitchen? Where is it? Sentence2: No, that's all I need for now. you've been very helpful. Thanks. Sentence3: They are in the towns centre. Expensive but worth every penny. Would you like to book a table? Sentence4: How about the postcode and attraction type for Byard Art? Sentence5: Thanks, I'm all done here. Sentence6: I have that table reserved. Your reference number is K94DWSQN . Can I help you with a taxi or hotel room? Sentence7: You're welcome. Have a great day! Sentence8: Unfortunately, we do not have information on several of them. But, Byard Art, Wandlebury Country Park, and Sheep's Green and Lammas Land Park are all free admission attractions. Sentence9: I have booked you a taxi that will get you there by 13:15. The car type is a blue Tesla and the contact number 07664553144. Can I do anything else? Sentence10: Enjoy yourself.You can call us if you need anything else Sentence11: no, not really. What are entrance fees on the 8 attractions? Sentence12: What can you tell me about attractions in the south part of town? Sentence13: I need a taxi from Byard Art that will get us to the restaurant on time. Sentence14: We have 8 attractions in the south part of town. Do you have a preference of type? Sentence15: Yes please, a table for 6 people at 13:15 on Tuesday would be amazing. Sentence16: Postcode, cb21sj, and the type is museum. Is there anything else I may help you with? Question: Who has spoken the sentence 3? (A) User (B) System
[EX A]: Answer: (B) System

[EX Q]: Sentence1: We have many great hotels. Do you have a preference of star rating? Sentence2: Booking was successful. The table will be reserved for 15 minutes.Reference number is : 7LDNJZEE . anything else? Sentence3: no. it should free packing and located in the west Sentence4: I have booked your taxi. Be expecting a grey Tesla. Please call 07177768413 should you need to reach them. Sentence5: Sorry about that! how about a and be guest house? Sentence6: Yeah, please book me for 6 people, on saturday at 14:00 Sentence7: Of course, do you have a price range in mind? Sentence8: uhm, i definitely don't want to sleep in a hospital. Sentence9: Great. I also need a taxi to get me to the restaurant by the reservation time. Sentence10: Anything else today? Sentence11: The restaurant should be in the expensive price range Sentence12: The Cambridge Lodge restaurant is in the west. The address is Cambridge Lodge Hotel 139 Huntingdon Road City Centre. Is there anything else to help you? Sentence13: Glad to have helped! Sentence14: No that is it. Thank you. Sentence15: Thank you for your help. Sentence16: Okay. Also can you help me find a restaurant in the same area that serves European food. Sentence17: The star rating doesn't matter, thanks Sentence18: Picked up at the hotel and sent to the restaurant by the booking time please. Sentence19: If thats the case here is a nice hopital Addenbrookes Hospital Sentence20: Where do you want to be picked up? Sentence21: Could you help me with some information please? I am looking for a place to stay. Sentence22: Sure thing what price range are you looking for? Question: Who has spoken the sentence 1? (A) User (B) System
[EX A]:
Answer: (B) System