You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I just want to cancel my recent reservation, due to sudden demise of my great grand father. Can you aid me with cancellation?

ASSISTANT: Sure, That's very sad to hear from your side, hope his soul rest in peace. May I know your name to proceed further?

USER: Sure, you can check my reservation on the name of Patricia Hernandez.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, There was no reservation found on your name to cancel it.

USER: That's Ok, thanks for your information.

ASSISTANT: Thank you for opting us.