Hello.
user
Hello, how may I assist you?
assistant
I'm William Martinez here, I want to change my existing reservation. Can you please help me?
user
Sure, may I know your name?
assistant
I have mentioned above.
user
Please, wait a moment let me check the previous details on your name. Ok.
assistant
Sure.
user
Sorry, no reservation found on your name.
assistant
Thank you for contacting us. Ok, no problem.
user
Thank you for reaching us.
assistant