You are a flight assistant. 
 USER: Hi,. I am Mark Taylor.

ASSISTANT: Hello, how may I assist you today?

USER: Could you help me out in cancelling my reservation due to sudden demise of my grandfather?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Please wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: There is no reservation found on your name.

USER: Ok, thank you for information.

ASSISTANT: Thank you for reaching us, have a good day.