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

Sentence1: Booked car type : white toyota Contact number : 07264671188 All set. What else can I help with today? Sentence2: looking for places to go in town and be in the South Sentence3: Yes, please book it. Sentence4: Thank you. I'd also like to book a taxi. I need to leave the hotel by 10:15. Sentence5: When will you start your stay? Sentence6: What's the entrance fee? Sentence7: What type of attraction are you looking for? Sentence8: The attraction should be in the south. Sentence9: I think I got everything I need thanks to you! Sentence10: Unfortunately, Nusha has not provided any information on entrance fees. I can seek other options, if you'd like. Sentence11: I need it for Thursday night, for four nights, for 4 people. I'll also need a taxi by 10:15. I need the car type and contact number please. Sentence12: Booking was successful. Reference number is : Y3CFU8WN . Sentence13: There is a hotel called Cityroomz in centre located at Sleeperz Hotel, station road. Would you like me to book it for you? Sentence14: how about nusha? it's located in the south. Sentence15: then find me a particular hotel called cityroomz Sentence16: Well, you are very welcome. I hope you have a great time! Question: Who has spoken the sentence 13? (A) User (B) System
Answer: (B) System

Sentence1: I'm looking for a train to depart Cambridge leaving on Wednesday, can you help me? Sentence2: Anatolia sounds great. Can you give me their address, postcode, and phone? Sentence3: There are 38 trains leaving from cambridge to peterborough. What time you would like to leave? Sentence4: I would like to leave after 14:00 and make a booking. Sentence5: Yes. Either Anatolia or Efes Restaurant would be a good choice. Would you like me to book you a table at one of them? Sentence6: There are over 200 trains departing Cambridge on Wednesday. What will be your destination? Sentence7: Can you recommend a good Turkish restaurant, moderately priced, in the centre of town? Sentence8: I would like to book for 5 people. Sentence9: Anatolia's address is 30 Bridge street City Centre, the postcode is cb21uj, and the phone number is 01223362372. Is there anything else I can do to help you? Sentence10: Your tickets have been reserved. The total will be 82.5 GBP, payable at the station, and your reference number is FSS5PPSG . Is there anything else I can help you with? Sentence11: I can book you on the TR 3587 leaving at 14:06 and arriving by 14:56. Would that be good? Sentence12: Yes,and the reference number as well, please. Sentence13: You are welcome. Have a great day! Goodbye! Sentence14: I will be glad to book this for you and get a reference number. Do you only need one ticket for yourself? Sentence15: I will be leaving from Cambridge. I need to go to Peterborough. Sentence16: No, that will be all thank you. Question: Who has spoken the sentence 5? (A) User (B) System
Answer: (B) System

Sentence1: I would like to find a guesthouse with a 4 star rating. Sentence2: OK, I was able to get the reservation for you. The reference number is I36DJXLT . Can I help you with anything else? Sentence3: You're very welcome, have a great day! Enjoy Cambridge! Sentence4: Yes, for the same group of people on Monday at 17:15, please. Sentence5: I have a table reserved for you, they'll hold it for 15 minutes. The reference number is WU3RYCER . Can I help you with anything else? Sentence6: Would it be possible for you to book another day? Sentence7: The alexander bed and breakfast would fit your needs would you like me to make a reservation for you Sentence8: I'd like Italian food, please. Sentence9: There is a Pizza Express in the centre that is moderately priced. Would you like to book there? Sentence10: YES I NEED IT FOR 3 PEOPLE FOR 2 NIGHT STARTING MONDAY AND I NEED THE REFERENCE NUMBER Sentence11: Find a restaurant in the centre that's the same price range as the hotel, please. Sentence12: Hello. I'd like to find a hotel to stay in for the weekend. I'd like one with restaurants and entertainment within walking distance. Sentence13: I found over 20 choices. Is there a certain type of food you're interested in? Sentence14: No, thank you for your help. Question: Who has spoken the sentence 4? (A) User (B) System

Answer: (A) User