Teacher: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Sentence1:i need a place to dine in the center thats expensive Sentence2: I have several options for you; do you prefer African, Asian, or British food? Sentence3: Any sort of food would be fine, as long as it is a bit expensive. Could I get the phone number for your recommendation?Question: Who has spoken the sentence 2? (A) User (B) System
Solution: Answer: (A) User
Reason: The sentence 1 is said by a user because the intent of it says that the information has to be gathered from the system

Now, solve this instance: Sentence1: Oh yes. Absolutely. Your reservation reference number is 7ZPRZE74 . Can I be of help with anything else? Sentence2: I am looking for places to go in Cambridge. Are there any nightclubs? Sentence3: Can you provide me with the reference number for my reservation please? Thanks. Sentence4: Can you try to book the restaurant for 18:30 instead please? And can you provide a reference number as well. Sentence5: I would like to book a table for 5 people at 19:30 on tuesday please. Sentence6: I have booked a table for you for a party of 5 at 18:30 on Tuesday at the Ugly Duckling restaurant. Is there anything else I can help with? Sentence7: The ugly duckling is located in the centre of town. It serves chinese food. Would you like to book a reservation? Sentence8: You're welcome. Have a nice day. Sentence9: There are 6 nightclubs in Cambridge. Is there a specific part of town you prefer? Sentence10: No, that is all. Thank you! Sentence11: I do not have a preference. Can you give me the phone number and postcode for one? Sentence12: Club Salsa phone number is 07782218745 and the postcode is cb12jb, is there anything else I can assist you with? Sentence13: tuesday at 19:30 is not available, would you like another time or another day? Sentence14: Yes I am looking for a restaurant called the Ugly Duckling. Question: Who has spoken the sentence 1? (A) User (B) System
Student:
Answer: (B) System