Hi.
user
Hello, how may I help you today?
assistant
I would like to change my existing reservation, can you please help me in changing?
user
Sure, may I know your name?
assistant
Mary Allen is here.
user
Wait a minute.
assistant
Sure.
user
Sorry, there was no reservation found on your name.
assistant
Ok, no worries at all. Thank you.
user
Thank you for choosing us.
assistant