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, may I know your good name? 
 customer: Owing an emergency I want to cancel my reservation, please help me with it. 
 agent: Ok. 
 customer: Sure, I am Emily Gonzalez. 
 agent: Ok, Give me a minute. 
 customer: Ok. 
 agent: No reservation found with your name. 
 customer: Fine, thanks for your information. 
 agent: Thank you for choosing us, have a nice day.
Solution:
no_reservation