You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how could I assist you?

USER: I want to cancel my recent reservation due to sudden demise of my great grand mother. Can you help me in cancellation?

ASSISTANT: Can I know your name please?

USER: I am Amy Roberts.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: There is no reservation found with your provided name.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you.