Hello.
user
Hello. How may I be at your service?
assistant
 I am Daniel Perez want to cancel my reservation due to prepone of my meeting.
user
Ok.
assistant
 Can you please cancel my ticket?
user
Wait a minute, I will check and let you know the details.
assistant
Ok.
user
We found a reservation on your name and it got cancelled.
assistant
Thank you for your help.
user
Thank you for reaching us.
assistant