You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Due to sudden demise of my Great Grandfather, I want to cancel my recent reservation. Can you please cancel my ticket?

ASSISTANT: Sure, please provide me your name?

USER: Sure, I am Jonathan Anderson.

ASSISTANT: There is no reservation with your name.

USER: Ok, Thank you for your service.

ASSISTANT: Thank you for reaching us.