instruction:
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
question:
customer: Hello. 
 agent: Hello. How can I help you today? 
 customer: My name is Michelle Green, I just need your help in changing my existing reservation details. 
 agent: Sure, please wait for a while. 
 customer: Ok. 
 agent:  I haven't found your previous reservation in our portal to change further. 
 customer: That's ok, thank you for the information. 
 agent: Thank you for opting us.
answer:
no_reservation


question:
customer: Hi. 
 agent: Hello, how may I serve you at this moment? 
 customer: Owing to an emergency, I want to cancel my recent reservation. Can you help me in that? 
 agent: Sure, we are here to help you. 
 customer: Thank you. 
 agent: May I know your name please? 
 customer: Sharon Wright. 
 agent: Ok, please be on hold. 
 customer: Ok. 
 agent: Sorry, we could not find any reservation on your name. 
 customer: Ok, no problem. Thank you. 
 agent: Thank you for approaching us.
answer:
no_reservation


question:
customer: Hello. 
 agent: Hello, how can I help you today? 
 customer: I would like to visit New York to meet my family, please help me in booking a ticket from HOU to LGA. 
 agent: Sure, we are here to help you. 
 customer: Thank you. 
 agent: Can you share me your travelling dates? 
 customer: My planned travel dates are on Oct 6 and Oct 8. 
 agent: May I know your name? 
 customer: My name is Angela Wright. 
 agent: Do you have any other specifications? 
 customer: I prefer a connecting flight. 
 agent: Ok, wait for some time. 
 customer: Sure. 
 agent: Thanks for waiting there are no flights found on your details. 
 customer: Ok, no issues. Thank you for your information. 
 agent: Thanks for approaching us.
answer:
no_flight