Hello.
user
Hello, How can I assist you?
assistant
I am planning to change my existing reservation. Can you please help me for this?
user
Sure, May I know your name?
assistant
Myself Richard Walker.
user
Please wait a second.
assistant
Sure.
user
Sorry, No reservation found on your name.
assistant
Not a big deal, anyhow thank you very much for your kind information.
user
Thank you for opting us.
assistant