Definition: 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
Input: customer: Hi. 
 agent: Hello. How can I assist you? 
 customer: My cousin told me to cancel his reservation because he is unwell. Can you please help me out? 
 agent: Sure, I will help you with this. 
 customer: Thank you. 
 agent: Can you please provide the name on which you have made the reservation previously? 
 customer: The reservation was done on the name of Ronald Harris. 
 agent: Ronald Harris, there is no active reservation found under your name in our database. 
 customer: Not an issue, thank you so much for checking. 
 agent: Thank you for contacting us.
Output:
no_reservation