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: Hello, I am Rachel King. 
 agent: Hello, How can I be your helping hand the day? 
 customer: Due to bad weather condition, I want to cancel my reservation ticket. Can you help me out in this? 
 agent: Sure, I am here to help you. Please wait for a minute, I will be right back. 
 customer: Sure. 
 agent: Thanks for being patient. We did not find any reservation with your name to cancel the reservation. 
 customer: It's ok, not a problem. 
 agent: Thank you for contacting us. 
 customer: Thank you for your information.
Solution:
no_reservation