Hi.
user
Hello, how can I assist you?
assistant
I need to change my reservation due to urgent meeting, can you help me?
user
Sure, may I know your name to check your reservation from our database.
assistant
I am John Martin.
user
We regret to inform you that there is no active reservation found on your name to change.
assistant
That's ok. Thank you for your help.
user
Thank you.
assistant