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

Q: Sentence1: It has a 3 star rating. Sentence2: Could you tell me if The Lensfield Hotel has at least a 4 star rating? Sentence3: Find me an expensive place to stay on the south side, please. Sentence4: Yes I would like to make a booking. Sentence5: You're welcome. Have a great day! Sentence6: No, The only hotel I see has a 3 star rating. Sentence7: You know I also need someplace to eat in that is also cheap, and also in the south area. Sentence8: There is only one expensive hotel on the south side. Would you like to book at The Lensfield Hotel? Sentence9: Okay, how many guests and how many nights would you like me to book? Sentence10: How about a hotel in the cheap price range? Sentence11: I would also like a taxi to arrive by my booked time. can i have the taxi contact number and car type Sentence12: Lets go with The Lucky Star. I need a table for 8 people at 13:45 on Friday. Sentence13: Great it's all booked the reference number is MXDZ66IK Sentence14: You have your choice of The Lucky Star, with Chinese cuisine, or Nandos, a portuguese restaurant. Sentence15: Sure, the car will be a blue lexus and the contact number is 07235433780. Anything else I can help you with? Sentence16: I see, are there any cheap 4 star hotels on the south side? Sentence17: Nope, that is all. Thank you very much. Sentence18: Rosa's bed and breakfast is a guesthouse is a 4 star. Question: Who has spoken the sentence 2? (A) User (B) System

A: Answer: (A) User
****
Q: Sentence1: I am also looking for Cambridge Contemporary Art. Sentence2: Can you give me their entrance fee and phone number? Sentence3: Maybe. What is the star rating and price range on that hotel? Sentence4: Are there any available rooms in the Autumn House? Sentence5: You're welcome. Enjoy your stay. Sentence6: You are all set. Your taxi would be a red lexus and you can contact them at 07614169632. Is there anything else I can help? Sentence7: no problem. Their phone number is 01223324222 and the entrance fee is free. Sentence8: Sure, I have found it for you. Is there anything you want to know about? Sentence9: That's all i need. Thank you so much for the help! Sentence10: Autumn house has a guesthouse. When are you looking to stay? Sentence11: it has four stars and its cheap Sentence12: Awesome. Can you also help me to book a taxi from the hotel to the attraction? I want to leave the hotel by 24:45. Question: Who has spoken the sentence 5? (A) User (B) System

A: Answer: (B) System
****
Q: Sentence1: I've booked your hotel for a 3 night stay for 5 people. Your reference number is IO1X1H8Q . Can I help you with something else? Sentence2: Thank you for contacting us and have a nice day. Sentence3: The booking was successful. The table will be reserved for 15 minutes.Your reference number is : XL60G8AI . Sentence4: There are none in the centre area however there are some in the north, south, or east. Which area would you like? Sentence5: I don't have anything that fits all your specific requests in that area. Would you like to try a different area or would you be willing to change specifics? Sentence6: it doesn't matter just book a room for 3 nights I'll need the reference number then too please Sentence7: Great. Can you make me a reservation for 5 people at 14:30 on Wednesday. Sentence8: Surely there's got to be a moderately priced 4 star hotel in the Cambridge area that offers free parking and internet. Can you please check again? Sentence9: No thanks that's all I need for now. Thank you for your help. Sentence10: I would like to find a certain restaurant called the Maharajah Tandoori Restaurant. Can you find it for me? Sentence11: It is located at 41518 Castle Street City Centre. Sentence12: We have 33 places to stay in the area. Would you like to narrow down your needs, like price range or area? Sentence13: Well I would like it to be moderately priced, 4 stars and include free wifi and include free parking. Sentence14: Thanks so much. I'm also looking for a place to stay. Question: Who has spoken the sentence 12? (A) User (B) System

A:
Answer: (A) User
****