Hi. I am Andrew Rodriguez.
user
Hello, how may I serve you today?
assistant
Due to some issues I need to change my existing reservation, Can you please help me with that?
user
Sure, please wait for a while.
assistant
Sure.
user
Sorry, there is no reservation found on your name in our database.
assistant
Ok, no problem. Thanks for your information.
user
Thank you for availing us.
assistant