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, how may I aid you today? 
 customer: I am Jessica Jones. I want to cancel my recent reservation due to cancellation of my trip. Can you help me? 
 agent: Sure, we are here to help you. 
 customer: Thank you. 
 agent: Please wait a moment. 
 customer: Ok. 
 agent: Thank you for your time, sorry, no reservation found with provided name. 
 customer: No issue. Thank you. 
 agent: Thank you for availing us.
Solution:
no_reservation