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

customer: Hi. 
 agent: Hello, how can I assist you? 
 customer: I would like to book a ticket from PHL to DCA, can you please help me with that? 
 agent: Sure, may I know your name to proceed further? 
 customer: Christopher Allen here. 
 agent: Do you need any connections between your trip? 
 customer: I need a flight with 1 connection limit. 
 agent: May I know your preferred dates to reserve your seat? 
 customer: The travel dates are from 11/09 to 11/11. 
 agent: Do you need any other requirements? 
 customer: No. 
 agent: As per your requirements there is a Southwest airlines, Flight number:1010 is going on your way with single connection and price:100. Is that Ok for you? 
 customer: Please proceed. 
 agent: Your ticket has been booked successfully. 
 customer: Thank you. 
 agent: Thank you for opting us.
book

customer: Hello. 
 agent: Hello, how may I help you today? 
 customer: Due to urgent work, I would like to change my reservation to some other date, can you please help me out with that? 
 agent: Sure, we are here to help you. 
 customer: Thank you for your positive response. 
 agent: May I know your good name please? 
 customer: Sure, my name is Christine Rodriguez. 
 agent: Please wait a minute. 
 customer: Ok. 
 agent: Sorry, there is no reservation on your name in our database. 
 customer: It's ok no problem. Thank you for your information. 
 agent: Thank you for opting us.
no_reservation

customer: Hello. 
 agent: Hello,. How can I assist you? 
 customer: I want to change my existing reservation due to the bad health conditions. Can you help me? 
 agent: Please provide your name? 
 customer: Gary Davis is my name. 
 agent: No reservation found by name Gary Davis. 
 customer: No problem. Thank you for your information. 
 agent: Thanks. Have a nice day!.
no_reservation