Hi,.
user
Hello, how may I help you at this moment?
assistant
I am Angela Martinez. Please, change my existing reservation as my meeting with my clients are postponed.
user
Sure, please wait for a while, I will check the reservation list and revert to you.
assistant
Sure,.
user
We hardly tried to find your reservation but, no reservation has been found with your name.
assistant
Ok, thank you for information.
user
Thank you for approaching us.
assistant