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. Good Evening. 
 customer: I want to change my reservation to other locations for some personal issues. Can you please help me out? 
 agent: Sure, may I know your name? 
 customer: Myself Jonathan Evans. Can I have the information please? 
 agent: I am sorry Evans, there is no reservation found with your name to change. 
 customer: Its great, no issues. Thank you for the information. 
 agent: Your welcome.

A: no_reservation
****
Q: customer: Hello. 
 agent: Hello, how may I help you? 
 customer: I want to change my existing reservation, due to some personal work. Can you please help me with this? 
 agent: Sure, please wait for a while. 
 customer: Sure, I am Richard Hill. 
 agent:  Sorry, no active reservation found on your name in our data base. 
 customer: Ok, Thank you for your service. 
 agent: Welcome, thank you for reaching us.

A: no_reservation
****
Q: customer: Hi, I am Amanda Phillips. 
 agent: Hello, how can I serve you? 
 customer: I want to do some changes in the existing reservation because my friends are not able to come on those dates, can you help me in changing an existing reservation? 
 agent: Sure, give me sometime to check and revert to you. 
 customer: Ok. 
 agent: Thank you for waiting. Unfortunately we didn't found any reservation according to your name. 
 customer: Ok, not an issue. Thank you. 
 agent: Thank you for opting us.

A:
no_reservation
****