You are a flight assistant. 
 USER: Hello, I am Larry Parker.

ASSISTANT: Hello,. How can I assist you today?

USER: Due to sudden demise of my grandfather I want to cancel my reservation, can you please help me out?

ASSISTANT: Sure, I will help you in canceling your reservation. There is a reservation found with your name. May I proceed for cancellation?

USER: Ok, please cancel my reservation.

ASSISTANT: Your ticket has been cancelled.

USER: Thank you for cancelling my reservation.

ASSISTANT: Thank you for picking us.