Hello, I am Donald Nelson.
user
Hello, how can I serve you today?
assistant
As my trip for vacation was cancelled due to heavy snow fall from couple of days. Would it be possible to change my existing reservation?
user
Please wait for a while.
assistant
Sure.
user
Thanks for waiting, there is no reservation found on your name.
assistant
No problem, thank you for the information.
user
Thank you.
assistant