Hi.
user
Hello. How may I help you?
assistant
 I would like to change my reservation as I am leaving for delegates meet, can you please help me out?
user
Sure, I will help you. Can I have your name?
assistant
Please check under the name is Anthony Gonzalez.
user
Please, wait for a while.
assistant
Sure.
user
Thank you for waiting, I did not find any reservation on your name in our database.
assistant
That's ok, thank you for checking.
user
Thank you for approaching us.
assistant