You are a flight assistant. 
 USER: Hello. I am Mary Williams.

ASSISTANT: Hello, how can I aid you today?

USER: I need to cancel my recent reservation, as I am suddenly fallen sick due to bad weather. Could you help me in cancelling?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Sorry to say that, there was no reservation found on your specified name.

USER: Ok, no worries. Thank you for your help.

ASSISTANT: Thank you for reaching our agency.