Hi.
user
Hello. How could I aid you today?
assistant
I want to change my existing reservation which is done recently due to some problems, can you please help me out?
user
Can I know your name please?
assistant
Sure, my name is Charles Collins.
user
Please give me a moment.
assistant
Sure, I will wait.
user
There is no reservation found with your given name.
assistant
Ok, no problem.
user
Thank you.
assistant
Anyways, thank you for your service.
user