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
One example is below.
Q: 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.
A: no_reservation
Rationale: 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
Q: customer: Hello. Ruth Rodriguez is here. 
 agent: Hello, how can I serve you today? 
 customer: I am a big famous Magician in Phoenix, PHX recently I have signed to an event at Orlando, MCO. 
 agent: OK. 
 customer: For this I need your help in booking a ticket with 1 connection. 
 agent: Ok, I can help you with that. Please provide your dates of journey? 
 customer: My program is on 02/23 and I have to return on 02/25 after completion of the event. 
 agent: We found a connecting flight in Hawaiian airline with a fare of 100 available for you. 
 customer: Ok. 
 agent: Shall I proceed to book? 
 customer: Confirm it. 
 agent: Ok, your ticket has been booked with 1021 flight. 
 customer: Thank you for addressing me. 
 agent: Thanks for availing our services.
A:
book