Hello.
user
Hello, how can I help you?
assistant
I am Carolyn Lopez. I have postponed all my plans due to heavy traffic, can you please help me to change my existing reservation?
user
Give me a moment, let me check your details.
assistant
Ok.
user
Sorry Lopez, I didn't find any reservation basing on your details.
assistant
OK, no issue. Thank you for your information.
user
You are welcome.
assistant