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

Ex Input:
Sentence1: I am planning a trip in Cambridge and need a place to stay with free parking. Sentence2: Excellent. Can I book that for 2 people for 2 nights starting on Tuesday Sentence3: I have many different options available. Let me ask, do you have a certain price range or area in mind? Sentence4: Thanks i will find you one.Thanks a lot Sentence5: I have no particular price range, but would like a guesthouse in the north part of town. Sentence6: That narrows it down to about 9 different options. Most offer both free parking wifi. If you would like my personal recommendation, I would say go with the Hamilton Lodge. Sentence7: Booking was successful. Reference number is : 152UJWIK . anything else today? Sentence8: Yes, I need to find a train on Tuesday from Cambridge to London Liverpool Street. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: I am looking for Mediterranean food in the center of the city. Sentence2: I show 3 available. 2 are in the expensive range and 1 is cheap. May I book a table for you? Sentence3: Thanks for calling. You have a great day! Sentence4: I have booked you at the Shiraz Restaurant for 7 people Saturday at 15:45. Your table will be reserved for 15 minutes. Sentence5: I'd like the expensive range and I'd like to book a table for 7 people on Saturday at 15:45. Sentence6: Great. Thanks so much! Sentence7: Thank you so much. That is all I need today. Have a great evening. Sentence8: Sure. Your reference number is MSV3UPS2 . You will likely need it. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Yes please, for 4 people. Sentence2: I'm not sure which I'd like to visit, do you have any recommendations? Also, please let me know the entrance fee. Sentence3: There are churches, colleges, and museums. Sentence4: Have a great day. Sentence5: No. That will be all for today. Thank you. Sentence6: You can call ADC Theatre at 01223300085 to find out the entrance fee. For the train, can you tell me the day you would like to travel? Sentence7: Booking was successful, the total fee is 40.96 GBP payable at the station. Reference number is : KY3BCCE0 . Can I help you with anything else today? Sentence8: There are many trains that go to Cambridge on Sunday, where are you departing from? Sentence9: I'll be leaving from stevenage Sentence10: There is a train leaving Stevenage at 11:54 and arriving in Cambridge at 12:43 this Sunday. Would you like me to book this train? Sentence11: I would like to travel on Sunday going to cambridge. Sentence12: Is there anyway to find out the entrance fee? I will also need to book a train leaving stevenage leaving after 11:45. Sentence13: Hi, I'm planning a trip to Cambridge and I'm looking for places to visit in the centre. Sentence14: I recommend adc theatre. I am unsure of the entrance fee. Question: Who has spoken the sentence 10? (A) User (B) System

Ex Output:

Answer: (A) User