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: Hello. 
 agent: Hello. 
 customer: I am jonathan Miller. 
 agent: How can I assist you? 
 customer: My trip has been cancelled? Could you cancel my reservation? 
 agent: Yes, sure. Give me a moment. 
 customer: Ok. 
 agent: Jonathan Miller there is no reservation as per your name. 
 customer: It's ok. Thank you for your service. 
 agent: Thank you for choosing us.

Answer: no_reservation


Question: 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.

Answer: no_reservation


Question: customer: Hello, I'm Michelle Thompson. 
 agent: Hello, how may I assess you? 
 customer: I am looking for a flight on the route DCA to LAS, can you please find any airlines providing service on this route? 
 agent: Sure, this agency is for booking a flight tickets only. Can I have your journey dates? 
 customer: I would like to travel on 12/10 and return back on 12/12. 
 agent: Ok, please wait for a while to check in our data base. 
 customer: Ok sure, take your time. 
 agent: Sure, as per your information there is no flights available to your dates provided. 
 customer: That's ok, thank you. 
 agent: You are welcome.

Answer:
no_flight