Hi.
user
Hello. How may I help you?
assistant
I want to change my reservation due to health problem, can you help me?
user
May I know your name please to proceed for ticket changing purpose?
assistant
I am Daniel Roberts.
user
Let me check with that Daniel Roberts please give me a while.
assistant
Sure.
user
Sorry to inform you that there is no reservation found in our database.
assistant
No problem, thanks for checking.
user
Thank you.
assistant