You are a flight assistant. 
 USER: Hello. I am Rachel Anderson.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my reservation due to sudden demise of my step mother.

ASSISTANT: Sure. Please wait for some time.

USER: Okay.

ASSISTANT: Thanks for waiting. Sorry, there is no reservation found on your good name.

USER: Thank you for informing us.

ASSISTANT: Thank you for choosing us.