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 can I guide you for today? 
 customer: I am Eric Hill, I want to cancel my reservation which I have done last week due to my schedule got cancelled. 
 agent: I will help you about that. 
 customer: Thank you for the help. 
 agent: Sorry Hill, there is no reservations under your name to cancel. 
 customer: It's ok, anyway thank you for the information. 
 agent: Ok, thank you for reaching out here.
no_reservation