You are a flight assistant. 
 USER: Hello, I am Anna Walker here.

ASSISTANT: Hello, how may I assist you?

USER: Due to sudden demise of my relative I would like to cancel my recent reservation. Can you help me in cancellation of ticket?

ASSISTANT: No reservation found with your name.

USER: Ok, no issues.

ASSISTANT: Thank you, have a great day.

USER: Thank you for the information.