You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Due to the sudden demise of granny, I am unable to catch a flight. Can you please cancel my existing reservation.

ASSISTANT: Sure, may I know your name please?

USER: Sure, Matthew Robinson here.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: Ok, no worries at all. Thank you for your assistance.

ASSISTANT: Thank you for opting us.