Teacher: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
Teacher: Now, understand the problem? Solve this instance: customer: Hello. 
 agent: Hello. How may I assist you? 
 customer: My friend has invited to a rodeo being conducted by him at Detroit. Can you help me in booking a ticket? 
 agent: Can you share your airport codes please? 
 customer: My source and destination airport codes are CLT and DTW. 
 agent: Let me know your journey dates. 
 customer: I am planning my journey on 03/26 and return on 03/28. 
 agent: Ok, please wait a moment. 
 customer: Sure. Make sure the connections is less than 1. 
 agent: Sorry, there is no flight with 1 connection. By the way, may I know your name please? 
 customer: Its ok and my name is Jennifer Lee. 
 agent: Ok, thank you for reaching us. 
 customer: Thank you for your information.
Student:
no_flight