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

Sentence1: yes book for 4 people and 5 nights from sunday Sentence2: I hope you have a great stay. Goodbye. Sentence3: I would prefer a college in town centre. I'll need the phone and address also. Sentence4: I am also looking for a place to stay in the centre. Sentence5: No that will be it thank you for your help. Sentence6: Booking was successful. Reference number is : 7RA903FR . Can I help with anything else today? Sentence7: Ok, there are 13 to choose from. Some have entrance fees. Sentence8: I'm looking for an attraction in the category of college in the center of town Sentence9: I have the cityroomz hotel in the center. Would you like me to make a booking for you? Sentence10: Moderate range please. Sentence11: What price range you would like? Sentence12: Sure thing, Downing college is located at regent street and phone is 01223334860 anything else I can assist with? Question: Who has spoken the sentence 11? (A) User (B) System
Answer: (B) System

Sentence1: Can you recommend a moderately priced restaurant in the South part of town? Sentence2: could i have the address and phone number please? Sentence3: sure, pizza hut cherry hinton is located at G4 cambridge leisure park clifton way cherry hinton and the phone number is 01223 413000. Is there anything else I can help you with? Sentence4: Would you prefer Italian or Modern european food? Sentence5: I don't care. Either one is fine. Sentence6: No, that is all I needed. Thank you. Bye bye. Sentence7: How about Pizza Hut Cherry Hinton. It serves Italian food, is in the moderate price range, and in the south part of town. Sentence8: Goodbye. Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

Sentence1: How about Archway House in the north? It has free parking and free Internet. It gets 4 stars. Would you like to book this one? Sentence2: The closest I have to that is a train arriving at 15:06 and takes 105 minutes to arrive. The train ID for this journey is TR1160. Would you like a reservation? Sentence3: Yes please. Book it for 4 nights for 6 people. We'd love to check in on Sunday Sentence4: I'm trying to narrow 11 choices down. Would you want free parking or free internet? Sentence5: free parking, please. Sentence6: Thank you. That was all I needed. Goodbye. Sentence7: You have several choices. Trains leave Cambridge at 5:21, 6:21, 7:21, 8:21, and 9:21. The 9:21 arrives at 11:06. Shall I book one of these ? Sentence8: Leaving from Cambridge this coming Thursday. Sentence9: Great. Your booking was successful and your reference number is PA8I7W04 . Sentence10: Hi, I need to locate a train to Leicester that will arrive by 16:45. Sentence11: No, I don't need a reservation. Sentence12: Okay we can do that. Where are you departing from? Sentence13: Yes, I was also looking for a place to stay somewhere in the north. Sentence14: Is there anything that I may help you with today? Sentence15: OK I need one that arrives at 15:45 and I will need the travel time and the train ID. Sentence16: In the moderate price range, please. Sentence17: sure, what price range? Sentence18: Have a nice day. Question: Who has spoken the sentence 2? (A) User (B) System
Answer: (A) User