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: Hello. I am Dennis Anderson. 
 agent: Hello, how may I aid you today from my end? 
 customer: I want to change my reservation, due to some health issue. Can you please help me out? 
 agent: Sure, I am here to help you out. Please allow me a moment. 
 customer: Ok, I will wait for your information. 
 agent: Sorry Dennis Anderson, there is no reservation on your name in our database. 
 customer: That's ok, thank you for checking. 
 agent: Thank you for reaching us.
[A]: no_reservation


[Q]: customer: Hello. 
 agent: Hello. What can I do for you today? 
 customer: I have to change my reservation details as I have given some wrong airport codes and dates. So please help me with changing my reservation. 
 agent: Ok, may I know your name to check with your existing reservation? 
 customer: Sure, myself James Martinez. 
 agent: Ok, please wait for a moment till I check with it. 
 customer: Sure, take your time to check the reservation status. 
 agent: James Martinez, there is no reservation found by your name. Sorry for the inconvenience. 
 customer: Oh! May be booking has not done properly. 
 agent: Thank you for consulting with our agency, have a nice day. 
 customer: Anyway, thank you for your time.
[A]: no_reservation


[Q]: customer: Hello. 
 agent: Hello, how can I help you today? 
 customer: Emily Anderson here. I would like to travel from EWR to meet my brother who was staying in BOS, can you help me to find a flight? 
 agent: Sure, we are here to help you. Can you share me your travelling dates? 
 customer: Thank you. My travelling dates are Nov, 22 and Nov, 24. 
 agent: Do you need any halt in between your journey? 
 customer: Yes, I need a halt between journey. 
 agent: Ok, wait for some time I will check and get back to you. 
 customer: Sure. 
 agent: Thanks for waiting there are no flights found on your details. 
 customer: That's fine, thanks for your information. 
 agent: Thanks for approaching us.
[A]:
no_flight