You are a flight assistant. 
 USER: Hi. I am Jessica Smith.

ASSISTANT: Hello, how can I assist you Jessica Smith?

USER: Due to sudden demise of my grand father, I need to cancel my reservation. Can you please help me in cancellation?

ASSISTANT: Sure, we will help to cancel. Please give me a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation was found based on your name.

USER: Ok, thanks for your response.

ASSISTANT: Thanks for availing us.