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

Sentence1: I don't have anything matching your request, would you like to change your hotel location or star rating? Sentence2: Hi. Could you help me with finding a hotel? Sentence3: No, thanks. That's all. Have a blessed day. Goodbye. Sentence4: Okay that was comleted successfully and your reference number is E5BQH7U1 . Sentence5: How about a 4 star hotel with free parking? Sentence6: I need a hotel for 4 people and 4 nights starting from thursday Sentence7: Great thanks. I need a taxi from Gonville Hotell to Cherry Hinton Hall and Grounds at 13:15. Sentence8: There are actually no lodgings of any kind in the east part of town listed. Would you like to try another area. The centre is very popular? Sentence9: Your taxi was booked successfully. You will be picked up in a black Tesla by 13:15 at the Gonville Hotel and dropped off at Cherry Hinton Hall and Grounds. Sentence10: This is really frustrating. Can you find me any 3 or 4 star hotels anywhere ? Sentence11: Great. Do you have a contact number? Sentence12: I'm still not finding anything. Would you like a different area? Sentence13: Thank you for using the Cambridge TownInfo centre. Goodbye. Sentence14: Absolutely! It is an entertainment attraction in the east. Phone is 01223446104. Postcode is cb18dw. And address is cherry hinton road. There is no entrance fee information listed. Sentence15: book for 4 people 4 nights from thursday Sentence16: Absolutely, do you have any other requirements? Sentence17: Could you double check for a 3 or 4 star hotel on the east side with free parking? Sentence18: Oh wow. I really need to find something. Would you mind looking again? 4 Star rated in the east with free parking. I would really appreciate it. Sentence19: Sorry. There are no matches. Is there anything else I can do for you today? Sentence20: That was a mistake. There are lots of 4 star hotels here. What is your price range? Sentence21: I am sorry but there are no 4 star hotels in the east in the expensive range. Would you like to try another price range, area, or star rating? Sentence22: Leverton House is a 4 star guesthouse in the east part of town in the cheap price range with both internet and parking included. Is there anything else today? Sentence23: Let's go expensive. I need to book it for 4 people for 4 nights on Thursday. Sentence24: I'm sorry but I have a hard time believing there is no place to stay in the east with either a 3 or 4 star rating. Sentence25: A 3 star hotel on the east side would be preferable. Sentence26: Their contact number is 07167487501. Is there anything else I can assist you with today? Sentence27: Since you say there are no 3 or 4 star hotels in the east, I will settle for the centre of town. Sentence28: I'm sorry there are no matches. Sentence29: Can you please provide me with information on the attraction cherry hinton hall and grounds? Sentence30: Gonville Hotel is a great hotel located in the centre. It's 3 stars and is in the expensive price range. Would you like me to book you a room? Question: Who has spoken the sentence 10? (A) User (B) System
Answer: (A) User

Sentence1: You're welcome, have a great day. Sentence2: I also need a train ticket. Sentence3: Booking was successful, the total fee is 115.5 GBP payable at the station . Reference number is : U0JGF786 . Sentence4: Yes, please book for 7 people, and give me the reference number. Sentence5: Hi, I'm looking for a theater. Sentence6: ADC Theatre in the centre is nice. Would you like the address? Sentence7: The train should arrive by 19:00 and should depart from cambridge. Sentence8: I'd be happy to help you find a train. Where would you be departing from and where would we be going to? Sentence9: Not especially, could you give me a recommendation? Sentence10: What time would you like to arrive or leave? Sentence11: I have a train leaving Cambridge at 5:06 and arriving to Peterborough at 5:56. The price is 16.50 pounds per ticket, would you like me to book it? Sentence12: Yes, please. Also, what is their phone number? Sentence13: Do you have a location preference? Sentence14: Awesome, thanks a lot. That's all I needed today. Sentence15: The phone number is 01223300085 and the address is on park street, postcode cb58as Sentence16: I will be going to Peterborough from Cambridge. Hoping to leave on Monday. Question: Who has spoken the sentence 6? (A) User (B) System
Answer: (A) User

Sentence1: Sounds interesting! What area is it in? Sentence2: I don't need a booking yet. I do need the postcode, though. Sentence3: Do they have internet? Sentence4: The postcode for the Allenbell is cb13js. Is there anything else I can help you with today? Sentence5: Wait, first let me know: do they have internet access? Sentence6: I am looking for a place to stay. The hotel should have a star of 4 and should include free parking Sentence7: Sure, the Allenbell Guesthouse is located in the east. Can I help with anything else? Sentence8: Sorry. I prefer a guesthouse. Does the Cambridge Belfry meet that requirement? Sentence9: Yes, it should be in the cheap price range. Sentence10: I apologize, it does not. Do you have a specific price range in mind? Sentence11: No, I think that's all I need. Thank you for your help today. Sentence12: You are more than welcome! Sentence13: The allenbell is in the east area. Would you like a reservation? Sentence14: Yes, the allenbell meets all your needs. Shall I book the guesthouse for you? Sentence15: The Cambridge Belfry fits your request. Would you like to book a room? Sentence16: How about allenbell? It looks lovely. Sentence17: Yes, the Allenbell has internet service. Would you like me to book this location for you? Sentence18: Could you also please tell me the area that is in? Question: Who has spoken the sentence 5? (A) User (B) System

Answer: (B) System