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

[EX Q]: customer: Hello. 
 agent: Hello, how best can I guide you for the day? 
 customer: Can you help me to book a flight from my work location Phoenix, PHX to Houston, HOU? 
 agent: Sure, do you prefer a connecting flight? 
 customer: Ok, please book a connecting flight. 
 agent: When do you want to start and return on? 
 customer: Ok, please book a flight for the dates June 22nd and June 24th. 
 agent: Do you prefer any other specifications? 
 customer: No. 
 agent: Can I know your good name? Thank you for your details, we found a connecting flight 1025 in class economy which is in Hawaiian airline. 
 customer: Ok, please book a ticket on the name Jeffrey Lopez. 
 agent: Your ticket has been confirmed. 
 customer: That is great, thank you for assisting me.
[EX A]: book

[EX Q]: customer: Hello. 
 agent: Hello. How can I help you at this moment? 
 customer: Owing to an emergency, I want to cancel my recent reservation. Can you help me out? 
 agent: Sure, I will help you with that. Can you please mention your name for further process? 
 customer: Barbara Jones. 
 agent: Ok, please hold on a moment. 
 customer: Ok, take your time. 
 agent: There is no previous reservation available under your name. 
 customer: That's ok. Anyways, thank you. 
 agent: Thank you for reaching us.
[EX A]: no_reservation

[EX Q]: customer: Hello. 
 agent: Hello, how can I help you? 
 customer: I want to change my recent reservation, can you please help me with that? 
 agent: Sure, please provide me your name to check the reservation? 
 customer: Thomas Campbell here. 
 agent: Sorry, there is no reservation with your name. 
 customer: No problem, thank you for the information. 
 agent: Thank you for reaching us.
[EX A]:
no_reservation