Hi. I am William  Garcia.
user
Hello, how can I assist you?
assistant
I want to cancel my recent reservation due to sudden change in my trip. Can you help me?
user
Sure, please wait a moment.
assistant
OK.
user
We found a reservation on your name. Shall I proceed for cancellation?
assistant
Sure, you can cancel it.
user
Your ticket has been cancelled.
assistant
Thank you.
user
Thank you.
assistant