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

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
Answer: (A) User

Sentence1: Yes. Book for 2 people for 4 nights on thursday and I'll need the reference number too please Sentence2: Okay, great! Enjoy your day. Sentence3: I have your table for 2 booked at the Bedouin. Would you like anything else? Sentence4: Your booking was successful. Your reference number is Q5BKFIC3 Sentence5: The reference number is 0LG9G1BT . Is there anything else I can help you with? Sentence6: We have one restaurant, the Bedouin. Would you like me to make you a reservation? Sentence7: I need the reference number too please. Sentence8: 2 people for Thursday at 19:00 please Sentence9: I was unable to find anything matching that. Would you like to try again? Sentence10: How about African food in general? Sentence11: yes please. Sentence12: The Limehouse is a moderately priced guesthouse on the north side of Cambridge. They are a 4-star establishment and offer free parking and Internet. Would you like to make a reservation? Sentence13: Thank you. Can you find us some good eats, too? We'd like something moderately priced that serves South African cuisine. Sentence14: I would be happy to book a reservation for 2. What day are you looking at and time? Sentence15: I am looking for a hotel in the Cambridge area called the limehouse. Sentence16: Thank you that is all I need. Question: Who has spoken the sentence 14? (A) User (B) System
Answer: (A) User

Sentence1: The entrance fee is free. Sentence2: Free is the best price! I'll probably be hungry after the museum. Are there any moderately priced Italian restaurants around? Sentence3: Thank you using Cambridge TownInfo centre today! Enjoy the rest of your day. Sentence4: Of course. The contact number is 07172397913. Can I help with anything else? Sentence5: It has been booked, your reference number is QFN3A3E9 . Sentence6: Thank you for your assistance. Sentence7: What is the entrance fee for the contemporary art museum? Sentence8: Could you book a table for me? I need a reservation for 3 people at 11:30 on Wednesday. Sentence9: Hello! I'm looking for some entertainment in the centre please! Sentence10: Can I please have the contact number for the taxi company? Sentence11: Pizza Express is a moderately priced restaurant in the centre of town. Would you like more information on it or to are you interested in booking a table? Sentence12: There are 11 museums listed in the centre area. Cambridge contemporary art and castle galleries are two that are listed. Would you like more information on one of these? Sentence13: Could you please provide me with some information on an attraction that is in he type of museum? Sentence14: There is a movie theatre, a concert hall, nightclubs, and museums. What would you like? Sentence15: Great! I'll need a taxi that will take me from the museum to the restaurant by 11:30. Can you book one for me? Sentence16: Its booked! Its a red Volvo Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User