You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

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

ASSISTANT: Sure, please give me a moment to check your ticket status. May I know your name?

USER: Sure, please check the reservation by this name Carolyn Martin.

ASSISTANT: Sorry Carolyn Martin, no reservation is available by your name.

USER: Ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for contacting us.