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
See one example below:
Problem: 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.
Solution: no_reservation
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, may I know your good name? 
 customer: Sure, you can call me as George Edwards. 
 agent: How may I assist you George? 
 customer: Me and my friends have planned to celebrate Flower festival at Elitch Gardens in Denver, CO - DEN. Can you please be my helping hand for booking a flight ticket? 
 agent: Sure, I am glad to help you. Please share me your price limit. 
 customer: Ok, It should be under the price of 5000. 
 agent: Could you please ensure your planned dates? 
 customer: Sure, I intend to fly on 01/27 to 01/29. 
 agent: From where do want to start your journey? 
 customer: I would like to start from Houston, TX - HOU. 
 agent: Please wait for a while. I will check and get back to you. 
 customer: Ok, I will wait. 
 agent: Thanks for your time, we found a connected flight in UA airline. Flight number: 1012 with fare of 100. 
 customer: Excellent, you can book a seat for me. 
 agent: Your seat has been proceed successfully. 
 customer: Ok, thanks for being my helping hand. 
 agent: Thanks for opting us. Have a safe journey.
Solution:
book