Detailed Instructions: 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
Problem:customer: Hi. 
 agent: Hello, how can I aid you today? 
 customer: Please help me to cancel my recent reservation due to my trip got cancelled. 
 agent: Sure, may I know your good name please? 
 customer: I am Carol young. 
 agent: Ok, give me a minute. 
 customer: Ok. 
 agent: We didn't found any reservation according to your requirements. 
 customer: Ok,not an issue. Thank you. 
 agent: Thank you for availing us.
Solution:
no_reservation