Hello, I am Carolyn Miller.
user
Hello, how may I oblige you today?
assistant
As my manager did not approved my leave, can you help me to cancel my recent reservation?
user
Please give me a moment, I will check and back to you.
assistant
Sure.
user
Unfortunately,  there is no reservation found on your given name.
assistant
Ok, no problem.
user
Thank you for communicating with us.
assistant
Thanks for the information.
user