Hello, I am Debra Collins.
user
Hello, How can I aid you?
assistant
I would like to change my existing reservation due to postpone of my conference.
user
Ok.
assistant
Could you please help me with modifying my existing reservation?
user
Sure. Wait for a while.
assistant
I regret my name is Deborah Collins.
user
Thanks for waiting. There is no reservation found on your name.
assistant
No problem, thank you for the information.
user
Thank you.
assistant