Hello.
user
Hello. How can I help you today?
assistant
My name is Jack Johnson. Could you please help me to change my existing reservation?
user
Sure, I can help you with that. Let me check that for you. Jack, I have checked and see that there is no reservation found under your name.
assistant
That's ok. Thank you for the information.
user
You are welcome. Thank you for contacting us.
assistant