Hello.
user
Hello, how may I best serve you today?
assistant
I want to change my existing reservation, can you please help me with this?
user
Sure, please share me your good name.
assistant
I am Gary Lewis.
user
Please wait for a while.
assistant
Sure.
user
Sorry to say that, there is no active reservation found on your name.
assistant
Ok, no problem.
user
Thank you for communicating with us.
assistant
Thank you for your information.
user