Hello.
user
Hello, how can I aid you for today?
assistant
I want to change my existing reservation, can you please help me with this?
user
Sure, I will help you about that. Can you please provide your name to check the reservation status?
assistant
I am Jeffrey Lopez.
user
Sorry for the trouble which is caused to you, I have not found any reservation on your name in our database.
assistant
Ok, no problem. Thank you for your information.
user
You are welcome, thank you for reaching us.
assistant