Hello.
user
Hello. How may I help you?
assistant
I want to change an existing reservation. Can you please help me out?
user
Sure, can you provide your name?
assistant
My name is Mary Rodriguez.
user
Ok, please wait meanwhile I'll check the details of your reservation.
assistant
Sure.
user
Sorry, no reservation found under your name.
assistant
Thank you for your information.
user
You are welcome. Have a nice day!.
assistant