Hello,. I am Thomas Brown.
user
Hello, how can I help you today?
assistant
I want to do some changes in existing reservation because I did not get the concert tickets. So I planning to travel on another date.
user
Ok, please wait a moment.
assistant
Can you please help me with changing? Sure.
user
Sorry to say, no reservation found with your name.
assistant
Ok, not an issue.
user
Thanks for reaching us, have a good day.
assistant
Thank you for your information.
user