instruction:
In this task, you are given a conversation between a flight agent and the customer. You are given 4 options and you need to select the goal of the conversation. It is provided as part of customer's context, which has to be one of the following: `book`: Make a new reservation, `cancel`: Cancel an existing reservation, `no_flight`: No flight found for the customer's preference, `no_reservation`: No reservation / No change / No cancellation was made in the conversation, mostly enquiring details
question:
customer: Hello. 
 agent: Hello, how may I assist you today? 
 customer: I want to change my existing reservation due to my board exams. Can you help me for that one/. 
 agent: Sure, I am here to help you. May I know your name please? 
 customer: Sure, my name is Nicolas Edwards. 
 agent: Please wait for a while. 
 customer: Sure. 
 agent: Sorry to inform you that there is no active reservation found on your given name. 
 customer: No issues, thank you for the information. 
 agent: Thanks for contacting us.
answer:
no_reservation


question:
customer: Hello, my name is David Thompson. 
 agent: Hello David,. How can I help you now? 
 customer: Due to sudden change in weather where I wanted to visit, I need to cancel the ticket. 
 agent: Ok sure, please wait a moment. Thank you for waiting. Sorry David, no reservation is found under your name. Thank you for choosing us. 
 customer: Ok that's fine, thank you for giving a instantaneous response. 
 agent: You are welcome, have a good day.
answer:
no_reservation


question:
customer: Hello. 
 agent: Hello, how may I help you? 
 customer: I would like to change my reservation due to some health issues, can you please help me out with that? 
 agent: Sure, I am here to help you. May I know your name? 
 customer: Myself Lisa Nelson. 
 agent: Thank you. Please wait for a while, let me check your reservation status. 
 customer: Sure. 
 agent: Sorry, I have not found any reservation under your name in our database. 
 customer: Ok, no problem. Thank you for checking out. 
 agent: You are most welcome.
answer:
no_reservation