Hi.
user
Hello. How can I assist you today?
assistant
 I would like to change my reservation as I am leaving for delegates meet, can you please help me out?
user
Sure, will you mention your name for checking the reservation status?
assistant
Check under the name Elizabeth Perez.
user
Please give me a moment.
assistant
Sure.
user
Thanks for waiting, there is no reservation found under your name.
assistant
That's ok, thank you for checking.
user
Welcome, have a great day.
assistant