You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I want to cancel my recent reservation due to sudden demise of my granny. Can you help me with that?

ASSISTANT: Sure, May I know your name?

USER: Daniel Martin here.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: Not an issue. Thank you for your assistance.

ASSISTANT: Thank you for choosing us.