Hello.
user
Hello, how may I help you?
assistant
I want to change my existing reservation, can you please help me with this?
user
Sure, may I know your name please?
assistant
Melissa Baker here.
user
Wait a while, kindly.
assistant
Sure.
user
Thank you for waiting, there is no reservation found for the user name in our data base to change your previous booking.
assistant
No problem, thanks for your information.
user
Thank you for reaching us.
assistant