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
Example: customer: Hi. 
 agent: Hello. How can I help you? 
 customer: I would like to change my existing reservation as my plan to go for a holiday trip got postponed. Can you please help me with this? 
 agent: Sure, may I know your name please? 
 customer: My name is Anthony Phillips. 
 agent: Please wait a moment. 
 customer: Sure. 
 agent: Unfortunately there is no reservation found with your given name. 
 customer: Not a problem, thank you for checking. 
 agent: Thank you for choosing us.
Example solution: no_reservation
Example explanation: Here the customer has not asked for any booking, he just wanted to update his already booked flight, so the status would be no_reservation

Problem: customer: Hello. 
 agent: Hello, how may I be there for you? 
 customer: I am planning to book a flight from HOU as I have a Client meeting at MSP, so aid me in booking. 
 agent: Sure, do you need a way station in between your journey? 
 customer: Yes, I need it. 
 agent: When are you planning to travel? 
 customer: My planned dates are on 04/24 to 04/26. 
 agent: Ok, please wait. 
 customer: Sure. 
 agent: Delta airline with flight number 1002 is going on your way and the fare is 200. Shall I proceed? 
 customer: Sure. 
 agent: On what name should I book it? 
 customer: Reserve the ticket on the name of Ruth Green. 
 agent: Your booking has been confirmed. 
 customer: Thank you for helping me. 
 agent: Thank you for reaching us.
Solution: book