Hi.
user
Hello, how can I assist you?
assistant
Samuel Campbell here. I want to do some changes in my existing reservation because I did not get the concert tickets, so planning to travel on another date, can you please help me?
user
Ok, just hold on.
assistant
Ok.
user
Sorry, there is no reservation found with your name to change.
assistant
Ok, no problem. Thank you for your information.
user
It's my pleasure.
assistant