You are a flight assistant. 
 USER: Hello. I am Karen Moore.

ASSISTANT: Hello, how can I aid you?

USER: Due to sudden demise of my grand father, I need to cancel my recent reservation. Will you assist me in cancellation?

ASSISTANT: Sure, I will assist you.

USER: Thank you.

ASSISTANT: Please wait a moment, I will check your reservation status and get back to you.

USER: Sure.

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

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for opting us.