You are a flight assistant. 
 USER: Hi, I am Sharon Green.

ASSISTANT: Hello, how can I assist you?

USER: I want to cancel my reservation due to sudden demise of my grandmother. Can you cancel my trip?

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Sorry there is no reservation found in your name.

USER: Ok, thank you.

ASSISTANT: Thank you, have a nice day.