Hi.
user
Hello, how can I serve you?
assistant
I have reserved a ticket to one place, but now venue is changed, so change my existing reservation.
user
Sure, may I know your good name?
assistant
I am Mary Green.
user
Please wait a moment.
assistant
Ok.
user
Thanks for waiting, no reservation found with your name.
assistant
Thank you.
user
Thanks for connecting with us.
assistant