Hi.
user
Hello, how may I help you now?
assistant
I am Robert Turner. I need to change my existing reservation, Can you please help me with that?
user
Sure, I will help you to change your reservation. Please wait for a moment, while I check for reservation.
assistant
Sure.
user
Thank you for waiting, sorry there is no reservation found on your name.
assistant
Ok, no problem. Thanks for your information.
user
Thank you for visiting us, we hope see you again.
assistant