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 may I aid you for the day? 
 customer: As my scheduled holiday trip got cancelled, I need your help in cancelling my reservation. 
 agent: Sure, I am here to help you. May I know your name to cancel the reservation? 
 customer: I am Paul Mitchell. 
 agent: Ok, I will check the recent reservation on your name and get back to you. 
 customer: Ok. 
 agent: There is no reservation found on your name to cancel. 
 customer: Ok, thanks for the information. 
 agent: Thank you for contacting us. Have a great day.
A:
no_reservation