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

[Q]: customer: Hi. 
 agent: Hello. How can I assist you today? 
 customer: I booked a flight ticket in your agency for my holiday trip to Houston but now I want a change in the travel dates. So can you go ahead and change my flight ticket? 
 agent: Sure, may I know your name to check for the previous reservation? 
 customer: I am Timothy Mitchell. 
 agent: Please allow me a moment. 
 customer: Sure. 
 agent: Timothy Mitchell, there is no reservation found under your name. 
 customer: Ok, not a problem. Thanks for your information. 
 agent: Thank you for contacting us.
[A]: no_reservation


[Q]: customer: Hello, I am Michelle Wright. 
 agent: Hello,. How may I serve you? 
 customer: I would like to cancel my reservation as my plan to on a tour with my friends got cancelled. 
 agent: Sure, please wait for a minute, I will revert you. 
 customer: Ok. 
 agent: We found a reservation with your name , can I proceed with cancellation? 
 customer: Yes please. 
 agent: We are done with cancellation, thank you. 
 customer: Thank you for your service. 
 agent: Have a good day.
[A]: cancel


[Q]: customer: Hi. 
 agent: Hello. How can I assist you today? 
 customer: I am Carol Harris. I want to book a ticket from MSP to BOS, can you help me? 
 agent: Sure, can you please share your travel dates? 
 customer: My travel dates are 08/15 and 08/17. 
 agent: Do you have any class preference? 
 customer: I am comfortable with any class. 
 agent: May I know your connection limit? 
 customer: I need a single connection. 
 agent: Is there any requirement that you are looking for? 
 customer: My departure time is afternoon. 
 agent: Carol Harris, I am sorry to inform you that there is no flight available at your request.
[A]:
no_flight