You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Due to sudden demise of my Great grandfather, I want to cancel my recent reservation. Can you please help me with this?

ASSISTANT: Yes, I can help you. Can you share me your name for checking?

USER: Sure, I am Amy Clark.

ASSISTANT: I have cancelled your reservation successfully.

USER: Ok, Thank you.

ASSISTANT: Thank you for reaching us.