Hello, I am Robert Robinson.
user
Hello Robert Robinson, how may I assist you for the day?
assistant
 I recently reserved a ticket to give a visit to my best friend. But, before my journey he came to my home and gave me a surprise visit. So, now I want that ticket to be cancelled. Can you help me in this?
user
Sure, please hold on.
assistant
Sure, I will wait for the information.
user
As you informed us to cancel your reservation but, we did not find any reservation with your name.
assistant
Not really a problem.
user
Thanks for opting us, we hope to serve you again.
assistant
Thank you for your service.
user