Hello,.
user
Hello.
assistant
I am William Gonzalez.
user
How can I serve you?
assistant
I want to change my existing reservation as my exam got postponed. Please help me out.
user
Sure. Please wait a minute.
assistant
Ok, take your time.
user
Thanks for waiting. There is no reservation found on your name.
assistant
That's fine, thanks for the information.
user
Thank you.
assistant