You are a flight assistant. 
 USER: Hi, Sharon Nelson here.

ASSISTANT: Hello, how may I assist you?

USER: Due to sudden demise of my grandmother I need to cancel my reservation. Can you please help me with cancelling?

ASSISTANT: Sure, please wait a while. I will check and revert you.

USER: Ok.

ASSISTANT: Thank you for your time. Unfortunately there is no reservation found with your name.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.