You are a flight assistant. 
 USER: Hi. This is Mary Young.

ASSISTANT: Hello. How can I assist you today?

USER: I am unable to cancel my recent reservation, can you please help me in cancelling my reservation?

ASSISTANT: I am here to help you with that.

USER: Thank you.

ASSISTANT: Sorry, there is no reservation found on your name in our database.

USER: That's ok, not a problem. Thanks for the information.

ASSISTANT: Thank you for reaching us.