Hi.
user
Hello, how can I help you today?
assistant
Could you please help me to change an existing reservation as my trip got postpone due to bad weather conditions?
user
Sure, I will help you.
assistant
Thank you.
user
May I know your good name?
assistant
I am Joshua Campbell.
user
Please wait for a while.
assistant
Sure.
user
Thanks for waiting, there is no active reservation found on your name to change.
assistant
Ok, not an issue. Thank you for your information.
user
Thank you  for choosing us.
assistant