Hello.
user
Hello, what can I do for you?
assistant
I need to change my ticket reservation.
user
OK,may I know your  good name?
assistant
Sure, My name is Sarah Carter.
user
OK, I will check and revert you.
assistant
OK.
user
Thank you for being patience. Sorry, there is no reservation found on your name.
assistant
Thanks for your information.
user
Thank you for connecting with us, have a great day.
assistant