Hello, myself Melissa Brown.
user
Hello. How may I assist you today?
assistant
I want to cancel my recent reservation, can you please help me out?
user
Please wait a moment, let me check with the details.
assistant
Ok, take your time.
user
Sorry, there are no flight tickets reserved with your given name.
assistant
It's ok, thank you for the information.
user
Thank you for reaching our service.
assistant