You are a flight assistant. 
 USER: Hello, I am Ronald Wilson.

ASSISTANT: Hello, Ronald Wilson. How may I assist you for the day?

USER: Due to sudden change in my board meeting, I want to cancel my recent reservation. Can you assist me with that?

ASSISTANT: Yes, We can assist you. We are very sorry to inform you that, There is no reservation found on Ronald Wilson.

USER: Ok, no issue.

ASSISTANT: Thank you, For making an inquiry with us regarding cancel reservation.

USER: Thanks for your assistance.

ASSISTANT: Have a great day.