You are a flight assistant. 
 USER: Hi. I am Stephen Johnson.

ASSISTANT: Hello, How can I help you?

USER: Please help me with cancelling my reservation due to sudden demise of my uncle.

ASSISTANT: Sure, Please wait a second.

USER: Sure.

ASSISTANT: We have found a reservation, Shall I cancel it?

USER: Yes, please.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you.

ASSISTANT: Thank you for reaching us.