Hi. I am John Miller.
user
Hello, how may I serve you now?
assistant
I want to change an existing reservation due to sudden change in my trip. Can you help me?
user
Sure, we are here to help you. Just give me a minute.
assistant
Ok.
user
Sorry to inform that there is no reservation found on your name.
assistant
No issue. Thank you for your help.
user
Thanks for connecting us, have a nice day.
assistant