Hi.
user
Hello. How may I help you?
assistant
Can you please help me in changing my flight ticket modification?
user
Sure, I am happy to help you. Can I know your name?
assistant
Thank you and my name is Thomas Turner.
user
Sorry to say that, no reservation found on your name in our database.
assistant
Ok, that's fine. Thank you for your help.
user
Thank you for approaching us.
assistant
Welcome.
user