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

customer: Hello, I am Scott Martin. 
 agent: Hello, how may I assist you? 
 customer: Due to sudden death of my grandfather I need to cancel my recent reservation can you please help me out cancelling my reservation. 
 agent: Sure, please wait a moment. 
 customer: Sure. 
 agent: There is no reservation on your name. 
 customer: No problem. 
 agent: Thank you so much for choosing us. 
 customer: Thank you for the information.
no_reservation