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 can I help you? 
 customer: I am planning for a round trip to TX-DFW with my sister's. Please help me with booking a direct flight. 
 agent: Sure, please share me your travelling dates? 
 customer: I need to go on 10/10 to 10/12. 
 agent: Do you have any specifications? 
 customer: I can pay up to 500. 
 agent: Please wait for few minutes. 
 customer: Ok. 
 agent: Sorry, there is no flight with your specifications. Can I know your name? 
 customer: Ok, thanks for the information. I am Samuel Harris. 
 agent: Thank you for reaching us.
Solution:
no_flight