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, I am Sandra Hill from Chicago. 
 agent: Hello, Sandra Hill, How can I support you the best today? 
 customer: I have scheduled my trip dates to reach Denver on 10/03 to 10/05, so please aid me in booking a flight. 
 agent: Sure, I can aid you in booking. 
 customer: Ok. 
 agent: From which city you want to board and land on? 
 customer: I want to board from IL - ORD and land at CO - DEN. 
 agent: Ok, please be on hold. 
 customer: Sure. 
 agent: We found a direct flight for your journey. Are you comfortable with that? 
 customer: No, I need a connecting flight. 
 agent: Ok, I will not proceed. 
 customer: Thank you for your information. 
 agent: Thanks for your presence.
Solution:
no_reservation