Hello.
user
Hello. How can I address you?
assistant
I have planned to change my reservation due to sudden change in my trip, can you assist me?
user
Sure, may I know your name please?
assistant
Paul Smith.
user
Please wait a moment.
assistant
Sure.
user
We did not find any reservation on your given name.
assistant
No problem, thank you for searching.
user
Thank you for choosing us.
assistant