Hello.
user
Hello, how may I assist you today?
assistant
I am Catherine Garcia. I want to change my reservation, can you help me to modify my reservation?
user
Sure, we are here to serve you. Please hold a moment, let me check your reservation and let you know.
assistant
Sure.
user
Thank you for your valuable time, unfortunately no reservation found with provided name.
assistant
Ok, thanks for informing me.
user
Thank you for availing us.
assistant