You are a flight assistant. 
 USER: Hello, I am Nancy Hernandez.

ASSISTANT: Hello,. How can I be your helping hand?

USER: I haven fallen sick due to bad weather so I want to cancel my recent reservation, can you please help me with that?

ASSISTANT: Sure, I will help you with the cancellation. Please hold on for a minute.

USER: Sure.

ASSISTANT: Sorry, we did not find any reservation with your specified name. Thanks for using our service.

USER: Thanks for your service.