Hello.
user
Hello.
assistant
I am Charles Williams.
user
How can I  help you?
assistant
I want to change my existing reservation, due to heavy rainfall in Seattle, can you help me?
user
Sure, just a moment please.
assistant
Sure.
user
I am sorry no reservation found on your name.
assistant
That's ok, thank you for your information.
user
Thank you for choosing us.
assistant