Hello.
user
Hello. How may I help you out?
assistant
Alexander Nelson here, I want to change my reservation which I have done last week.
user
Sure, I will help you in changing the reservation.
assistant
Thank you for considering my request.
user
Please wait for a while. Sorry, there are no reservations found in our database.
assistant
It's ok, it might not be done properly at the time of booking. Anyway thank you for the information.
user
Thank you for choosing us.
assistant