Hello. I am William Lewis.
user
Hello William, how may I help you today?
assistant
Due to bad weather in my city, I would like to change my reservation. Can you help me?
user
Ok, wait for a while.
assistant
Sure.
user
Sorry William, there is no reservation found with your name.
assistant
It's fine. Anyway, thank you for your help.
user
You are welcome.
assistant