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

Sentence1: Price range doesn't really matter, but I do want a 4-star place with free parking and internet. Sentence2: I have 19 hotels that match that criteria. please be more specific about the area of town where you'd like to stay Sentence3: Do you prefer a formal hotel, or a guesthouse? Sentence4: OK, what price point do you want me to look for? Sentence5: Booking was successful at the alexander bed and breakfast. Reference number is : MDB2AV4K Sentence6: i need a place to stay Sentence7: The area doesn't matter. Please book for 6 people on Saturday with 4 nights stay. Sentence8: Can you give me a suggestion for a hotel and make that reservation please? Thanks. Question: Who has spoken the sentence 4? (A) User (B) System
Answer: (A) User

Sentence1: I am looking for a particular hotel. Its name is called autumn house Sentence2: Thank you goodbye Sentence3: Could you try Wednesday, instead? Sentence4: You're welcome. Thank you for calling and goodbye. Sentence5: That's for 8 people and it's for 2 nights. Sentence6: Booking was successful. Reference number is : 3H0WHD4Z . Sentence7: No thanks. Would you book the Autumn House for me starting on Monday, please. Sentence8: I'm sorry, your booking was unsuccessful. Would you like to book another day or a shorter stay? Sentence9: How many people would be staying and how many days will you be staying? Sentence10: I have the Autumn House. It is at 710 Newmarket Road. Would you like the phone number? Question: Who has spoken the sentence 3? (A) User (B) System
Answer: (B) System

Sentence1: No. I need to leave from leicester and arrive in cambridge. I also need to arrive by 10:15. Sentence2: I need a train into cambridge on wednesday, please. Sentence3: Okay great. I am glad I could be of help! Sentence4: I can certainly find one for you. Can you tell me where you will be departing from? Sentence5: Sure. I'm leaving from Cambridge. Sentence6: Booking was successful, the total fee is 37.79 GBP payable at the station. Reference number is : KW6ZO219 . Is there anything else I can help with? Sentence7: Okay great. Thank you for your help. Sentence8: You're leaving from cambridge going to cambridge? Sentence9: TR7703 will depart leicester Wednesday at 8:09, arriving in cambridge by 9:54, would you like to book a ticket? Sentence10: Yes I would like to book a ticket on TR7703 for Wednesday morning, thank you. Question: Who has spoken the sentence 8? (A) User (B) System

Answer: (A) User