Hello.
user
Hello, how may I help you?
assistant
I want to change my ticket booking due to some problems, can you help in my ticket changing?
user
Sure, please give me a moment to check.
assistant
Thank you.
user
May I know your name to proceed further?
assistant
Yes, my name is Edward Hall.
user
Sorry Edward, there is no reservation available on your given name.
assistant
Ok, that's fine, no problem with that one.
user
Thank you for reaching us.
assistant
Welcome.
user