Hello.
user
Hello, how may I render you today?
assistant
 I made a reservation earlier in the wrong date unknowingly so, I want to change my existing reservation. Can you help me to change it?
user
Sure, I will help you with that.
assistant
Ok.
user
May I know your good name please?
assistant
Sure, my name is Dennis Turner.
user
Ok, please wait for a couple of minutes.
assistant
Sure.
user
Thanks for waiting, no active reservation was found on your name in the database.
assistant
Ok, thank you.
user
Thank you for availing us.
assistant