Hello, I'm Donna Anderson.
user
Hello, how may I assist you today?
assistant
 I need to cancel my reservation as I need to stay back in own city due to my house has collapsed by Floods.
user
Sure, please wait for a minute to check the reservation details.
assistant
Ok.
user
Sorry, I cannot find any reservation with your name.
assistant
That's ok, thank you.
user
Thanks for your contacting us.
assistant
Welcome.
user