You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, can I have your name please?

USER: My name is Jeffrey Campbell.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a reservation on your name, do you like me to cancel?

USER: Yes, I need to cancel.

ASSISTANT: Ok, your reservation has been cancelled.

USER: Thank you, You have done a good job.

ASSISTANT: Thank you for opting us.