Hello.
user
Hello, how can I assist you today?
assistant
I am Christopher Gonzalez. My meeting at NASA space centre has been postponed, due to heavy snow-storms. Can you help me to change an existing reservation?
user
Sure, please wait a moment I will check the existing reservation and revert you.
assistant
Ok.
user
Sorry there is no reservation found on your name.
assistant
Ok, thanks for the information.
user
Thank you, have a nice day.
assistant