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

[Q]: 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
[A]: Answer: (A) User

[Q]: Sentence1: Thank you for using the Cambridge Town Info Centre Services. I hope you enjoy your time in Cambridge! Sentence2: is it in moderate price range? Sentence3: Do you have anything in the moderate price range? Sentence4: Most of our nightclubs are right in the center of town. Kambar is my favorite. Sentence5: No, thanks. Can you find a gastropub restaurant in the centre, please? Sentence6: it is an expensive gastropub Sentence7: Yes, there's the the cow pizza kitchen and bar. Sentence8: They're located on Corn Exchange Street. Would you like me to make a reservation for you? Sentence9: Awesome! Can you provide me with the address, entrance fee, and postcode, please? Sentence10: The address is 1 wheeler street cb23qb and admission is 5 pounds, would you like their phone number? Sentence11: I am looking for something fun to do while in town. A nightclub would be nice. Sentence12: What is their address? Sentence13: backstreet bistro is an expensive gastropub in the centre area. Would you like more information? Sentence14: No, I just need information for today. You have answered all of my questions. Thanks so much. Bye. Question: Who has spoken the sentence 1? (A) User (B) System
[A]: Answer: (B) System

[Q]: Sentence1: I'm leaving from gallery at twelve a high street. Sentence2: I need a taxi to take me to rajmahal. Sentence3: No, that's it. Thank you so much! Sentence4: And when would you like to leave? Sentence5: Thank you for your help. Sentence6: You're quite welcome. Is there anything else I can assist you with? Sentence7: I have you booked in a grey audi. Sentence8: Where will you be departing from? Sentence9: It was my pleasure. Have a nice day. Sentence10: Contact number is 07270553802 Sentence11: Thank you, can you give me the contact number please? Sentence12: I would like to leave after 3:45. Question: Who has spoken the sentence 4? (A) User (B) System
[A]:
Answer: (A) User