Hello.
user
Hello.
assistant
My name is Donald Brown.
user
How may I help you out?
assistant
I would like to change my existing reservation to some other dates. Can you help me?
user
Sure, I will help you in changing the reservation. Sorry, there are no reservations found in our database.
assistant
Its ok, no issues. Thank you for the information.
user
Thank you for choosing us.
assistant