Hello.
user
Hello, how can I aid you?
assistant
I am Thomas Wilson, help me to change my reservation. Can you please change it?
user
Sure, we will help you. Please give me a moment to check your details.
assistant
Sure.
user
Thomas Wilson, there is no existing reservation on your name to proceed further.
assistant
OK, thank you for informing me.
user
Thank you for contacting us.
assistant