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
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Question: customer: Hi. I am Samuel Baker. 
 agent: Hello, how may I assist you today? 
 customer: I want to change my reservation owing an emergency. 
 agent: Sure, we are glad to serve you. Please wait for a while, let me check your reservation with us. 
 customer: Ok. 
 agent: Thanks for your time, unfortunately no reservation found with your name. 
 customer: Ok, thank you for your service. 
 agent: Thank you for availing us, have a great day ahead.

Answer: no_reservation


Question: customer: Hello, I am Shirley Martinez. 
 agent: Hello, how can I serve your today? 
 customer: I want to visit HOU from my hometown PHL, can you help me with single connection of flight? 
 agent: Sure, may I know your travelling dates? 
 customer: My depart is on 04/26 and return on 04/28. 
 agent: please mention your connections. 
 customer: I need a lay by in between journey. 
 agent: There is a Frontier 1002 with fare of 100 which matches your travelling dates. Shall I proceed with booking? 
 customer: OK, proceed with booking. 
 agent: Your booking has been confirmed on name of Shirley Martinez. 
 customer: Thank you for the help. 
 agent: Thank you for approaching us.

Answer: book


Question: customer: Hi. 
 agent: Hello. How can I help you? 
 customer: Amanda Perez here. Can you please hold me a flight ticket from LGA to DFW? 
 agent: Sure, may I know your class preference? 
 customer: I need a business class to travel. 
 agent: Let me know your planned travel dates please. 
 customer: My trip dates are 03/11 - 03/13. 
 agent: Do you have any connection limit? 
 customer: I prefer a single connection. 
 agent: Unfortunately there is no flight found with your provided information. 
 customer: No issues, thank you for your information. 
 agent: Thank you for opting us.

Answer:
no_flight