Hello.
user
Hello, how may I help you?
assistant
I want to cancel my previous ticket which is booked to go Chicago city but I have to attend a meeting on the departure date. Can you please help me in cancelling?
user
Sure, I will help you. May I know your good name?
assistant
Thank you. My name is Brenda Clark.
user
Sorry Clark, there is no reservation found under your name.
assistant
It's ok, thank you for providing the information.
user
Welcome.
assistant