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. 
 agent: Hello. How may I help you? 
 customer: Due to inconvenience of my work, I want to cancel my reservation. Can you please help me for that? 
 agent: Sure, I am here to help you. Can I know your name please? 
 customer: My name is Deborah Jones. 
 agent: Ok, please wait a moment. I will check your ticket status and let you know. 
 customer: Ok. 
 agent: Sorry to intimate you that, there is no reservation found on your name. 
 customer: Anyway, thanks for the information. 
 agent: You are welcome. Thank you for approaching us.
no_reservation