Hello.
user
Hello, how can I assist 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?
assistant
Jack Wright.
user
Ok, please wait a minute.
assistant
Sure.
user
Sorry, there is no reservation found on your name.
assistant
No problem, thank you for searching.
user
Thank you.
assistant